diff --git a/app/src/main/java/com/khumu/android/data/Info21UserInfo.java b/app/src/main/java/com/khumu/android/data/Info21UserInfo.java
new file mode 100644
index 0000000..8f85eb6
--- /dev/null
+++ b/app/src/main/java/com/khumu/android/data/Info21UserInfo.java
@@ -0,0 +1,18 @@
+package com.khumu.android.data;
+
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+
+import java.io.Serializable;
+
+import lombok.Builder;
+import lombok.Data;
+
+@JsonSerialize
+@Data
+@Builder
+public class Info21UserInfo implements Serializable {
+    String name;
+    String StudentNum;
+    String Dept;
+    Boolean verified;
+}
diff --git a/app/src/main/java/com/khumu/android/data/KhumuUser.java b/app/src/main/java/com/khumu/android/data/KhumuUser.java
index f5cee94..b675707 100644
--- a/app/src/main/java/com/khumu/android/data/KhumuUser.java
+++ b/app/src/main/java/com/khumu/android/data/KhumuUser.java
@@ -1,13 +1,19 @@
 package com.khumu.android.data;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 
 import java.io.Serializable;
 
+import lombok.Getter;
 import lombok.NoArgsConstructor;
+import lombok.Setter;
 
 // 현재는 Sign up 할 때에만 사용하기때문에 json => Java instance로의 변환은 구현하지않음.
 @NoArgsConstructor
+@Getter
+@Setter
+@JsonSerialize
 public class KhumuUser implements Serializable {
     private String username;
     private String nickname;
@@ -15,6 +21,7 @@ public class KhumuUser implements Serializable {
     private String email;
     private String studentNumber;
     private String department;
+    private String kind;
 
     public KhumuUser(String username, String nickname, String password, String email,
                      @JsonProperty("student_number") String studentNumber, String department) {
@@ -25,52 +32,4 @@ public KhumuUser(String username, String nickname, String password, String email
         this.studentNumber = studentNumber;
         this.department = department;
     }
-
-    public String getUsername() {
-        return username;
-    }
-
-    public void setUsername(String username) {
-        this.username = username;
-    }
-
-    public String getNickname() {
-        return nickname;
-    }
-
-    public void setNickname(String nickname) {
-        this.nickname = nickname;
-    }
-
-    public String getPassword() {
-        return password;
-    }
-
-    public void setPassword(String password) {
-        this.password = password;
-    }
-
-    public String getEmail() {
-        return email;
-    }
-
-    public void setEmail(String email) {
-        this.email = email;
-    }
-
-    public String getStudentNumber() {
-        return studentNumber;
-    }
-
-    public void setStudentNumber(String studentNumber) {
-        this.studentNumber = studentNumber;
-    }
-
-    public String getDepartment() {
-        return department;
-    }
-
-    public void setDepartment(String department) {
-        this.department = department;
-    }
 }
diff --git a/app/src/main/java/com/khumu/android/data/rest/DefaultResponse.java b/app/src/main/java/com/khumu/android/data/rest/DefaultResponse.java
index 20b55b7..9da0a0d 100644
--- a/app/src/main/java/com/khumu/android/data/rest/DefaultResponse.java
+++ b/app/src/main/java/com/khumu/android/data/rest/DefaultResponse.java
@@ -2,14 +2,20 @@
 
 import com.google.gson.annotations.SerializedName;
 
+import lombok.AllArgsConstructor;
+import lombok.Builder;
 import lombok.Getter;
+import lombok.NoArgsConstructor;
 import lombok.Setter;
 
 @Getter
 @Setter
-public class DefaultResponse {
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class DefaultResponse<T> {
     @SerializedName("data")
-    Object data;
+    T data;
     @SerializedName("message")
     String message;
 }
diff --git a/app/src/main/java/com/khumu/android/data/rest/Info21AuthenticationRequest.java b/app/src/main/java/com/khumu/android/data/rest/Info21AuthenticationRequest.java
new file mode 100644
index 0000000..3f3c27e
--- /dev/null
+++ b/app/src/main/java/com/khumu/android/data/rest/Info21AuthenticationRequest.java
@@ -0,0 +1,16 @@
+package com.khumu.android.data.rest;
+
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+
+import java.io.Serializable;
+
+import lombok.Builder;
+import lombok.Data;
+
+@JsonSerialize
+@Data
+@Builder
+public class Info21AuthenticationRequest implements Serializable {
+    String username;
+    String password;
+}
diff --git a/app/src/main/java/com/khumu/android/data/rest/UserResponse.java b/app/src/main/java/com/khumu/android/data/rest/UserResponse.java
index 6c0e7b3..860e41f 100644
--- a/app/src/main/java/com/khumu/android/data/rest/UserResponse.java
+++ b/app/src/main/java/com/khumu/android/data/rest/UserResponse.java
@@ -7,11 +7,13 @@
 
 import java.util.List;
 
+import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
 @Data
 @NoArgsConstructor
+@AllArgsConstructor
 public class UserResponse {
     @SerializedName("data")
     @Expose
diff --git a/app/src/main/java/com/khumu/android/di/component/ApplicationComponent.java b/app/src/main/java/com/khumu/android/di/component/ApplicationComponent.java
index efcbf26..1631f5a 100644
--- a/app/src/main/java/com/khumu/android/di/component/ApplicationComponent.java
+++ b/app/src/main/java/com/khumu/android/di/component/ApplicationComponent.java
@@ -29,7 +29,10 @@
 import com.khumu.android.repository.LikeArticleRepository;
 import com.khumu.android.di.module.RetrofitModule;
 import com.khumu.android.search.CommunitySearchActivity;
+import com.khumu.android.signUp.AdditionalFormFragment;
+import com.khumu.android.signUp.Info21AuthenticationFragment;
 import com.khumu.android.signUp.Info21SignUpActivity;
+import com.khumu.android.signUp.SignUpAgreementFragment;
 import com.khumu.android.study.StudyAdapter;
 import com.khumu.android.study.StudyFragment;
 
@@ -80,6 +83,9 @@ public interface ApplicationComponent {
     void inject(MyPageFragment myPageFragment);
     void inject(BoardListFragment boardListFragment);
     void inject(HotBoardFeedFragment fragment);
+    void inject(SignUpAgreementFragment fragment);
+    void inject(Info21AuthenticationFragment fragment);
+    void inject(AdditionalFormFragment fragment);
 
     void inject(KhumuApplication application);
     void inject(LoginActivity loginActivity);
diff --git a/app/src/main/java/com/khumu/android/repository/UserService.java b/app/src/main/java/com/khumu/android/repository/UserService.java
index ea8fa95..f232539 100644
--- a/app/src/main/java/com/khumu/android/repository/UserService.java
+++ b/app/src/main/java/com/khumu/android/repository/UserService.java
@@ -1,8 +1,11 @@
 package com.khumu.android.repository;
 
 import com.khumu.android.data.Comment;
+import com.khumu.android.data.Info21UserInfo;
 import com.khumu.android.data.KhumuUser;
 import com.khumu.android.data.SimpleComment;
+import com.khumu.android.data.rest.DefaultResponse;
+import com.khumu.android.data.rest.Info21AuthenticationRequest;
 import com.khumu.android.data.rest.UserResponse;
 
 import retrofit2.Call;
@@ -14,4 +17,7 @@ public interface UserService {
 
     @POST("users")
     Call<UserResponse> signUp(@Header("Content-Type") String contentType, @Body KhumuUser user);
+
+    @POST("users/verify-new-student")
+    Call<DefaultResponse<Info21UserInfo>> verifyNewStudent(@Header("Content-Type") String contentType, @Body Info21AuthenticationRequest input);
 }
diff --git a/app/src/main/java/com/khumu/android/signUp/AdditionalFormFragment.java b/app/src/main/java/com/khumu/android/signUp/AdditionalFormFragment.java
new file mode 100644
index 0000000..ecde755
--- /dev/null
+++ b/app/src/main/java/com/khumu/android/signUp/AdditionalFormFragment.java
@@ -0,0 +1,115 @@
+/**
+ * BaseFeedFragment를 상속받아 크게 추가할 내용은 없고, abstract method인 provideViewModel작업만 정의해주면됨.
+ * 기본적인 feed의 layout인 layout_feed.xml을 이용.
+ */
+package com.khumu.android.signUp;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+import androidx.databinding.DataBindingUtil;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.khumu.android.KhumuApplication;
+import com.khumu.android.R;
+import com.khumu.android.component.AutoDismissAlertDialog;
+import com.khumu.android.data.Info21UserInfo;
+import com.khumu.android.data.rest.DefaultResponse;
+import com.khumu.android.data.rest.UserResponse;
+import com.khumu.android.databinding.FragmentSignUpAdditionalFormBinding;
+
+import cn.pedant.SweetAlert.SweetAlertDialog;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class AdditionalFormFragment extends Fragment {
+    private final static String TAG = "AdditionalFormFragment";
+    private SignUpViewModel signUpViewModel;
+    private FragmentSignUpAdditionalFormBinding binding;
+
+    public AdditionalFormFragment(SignUpViewModel viewModel) {
+        this.signUpViewModel = viewModel;
+    }
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        // Layout inflate 이전
+        // savedInstanceState을 이용해 다룰 데이터가 있으면 다룸.
+        super.onCreate(savedInstanceState);
+        Log.d(TAG, "onCreate: ");
+        KhumuApplication.applicationComponent.inject(this);
+        this.signUpViewModel = new ViewModelProvider(this.getActivity()).get(SignUpViewModel.class);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        super.onCreateView(inflater, container, savedInstanceState);
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_sign_up_additional_form, container, false);
+        // binding하며 사용할 Fragment가 사용하는 변수인 viewModel을 설정해줌.
+        binding.setViewModel(this.signUpViewModel);
+        binding.setFragment(this);
+        // LiveData를 이용해 Observe하기 위해선 그 LifeCyclerOwner가 꼭 필요하다!
+        // 그렇지 않으면 유효하게 Observer로 동작하지 않고 아무 변화 없음...
+        binding.setLifecycleOwner(this.getActivity());
+        View root = binding.getRoot();
+        return root;
+    }
+
+    public void onClickNextBTN(View view) {
+        Context context = AdditionalFormFragment.this.getActivity();
+        Info21SignUpActivity activity = (Info21SignUpActivity) context;
+        SweetAlertDialog progressDialog = new SweetAlertDialog(context, SweetAlertDialog.PROGRESS_TYPE);
+        progressDialog.getProgressHelper().setBarColor(ContextCompat.getColor(context, R.color.red_500));
+        progressDialog.setTitleText("회원가입 중입니다");
+        progressDialog.setCancelable(false);
+        progressDialog.show();
+        new Thread(){
+            @Override
+            public void run() {
+                UserResponse resp = signUpViewModel.signUp();
+                progressDialog.dismiss();
+                // 가입 실패
+                if (resp.getData() == null && resp.getMessage() != null) {
+                    new Handler(Looper.getMainLooper()).post(new Runnable() {
+                        @Override
+                        public void run() {
+                            AutoDismissAlertDialog errorDialog = new AutoDismissAlertDialog(context, SweetAlertDialog.ERROR_TYPE, "회원가입을 완료하지 못했습니다.", resp.getMessage(), 2000L);
+                            errorDialog.getProgressHelper().setBarColor(ContextCompat.getColor(context, R.color.red_500));
+                            errorDialog.setCancelable(false);
+                            errorDialog.show();
+                        }
+                    });
+                } else{
+                    // 가입 성공
+                    new Handler(Looper.getMainLooper()).post(new Runnable() {
+                        @Override
+                        public void run() {
+                            SweetAlertDialog successDialog = new SweetAlertDialog(context, SweetAlertDialog.BUTTON_CONFIRM);
+                            successDialog.setTitle("회원가입을 성공했습니다.");
+                            successDialog.setContentText(signUpViewModel.getUser().getValue().getNickname() + "님 환영합니다 >_<");
+                            successDialog.setCancelable(false);
+                            successDialog.setConfirmText("로그인하러 가기");
+                            successDialog.show();
+                            successDialog.setOnDismissListener(v ->{
+                                activity.proceedSignUpStep();
+                            });
+                        }
+                    });
+
+                }
+            }
+        }.start();
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/khumu/android/signUp/Info21AuthenticationFragment.java b/app/src/main/java/com/khumu/android/signUp/Info21AuthenticationFragment.java
new file mode 100644
index 0000000..8b19573
--- /dev/null
+++ b/app/src/main/java/com/khumu/android/signUp/Info21AuthenticationFragment.java
@@ -0,0 +1,109 @@
+/**
+ * BaseFeedFragment를 상속받아 크게 추가할 내용은 없고, abstract method인 provideViewModel작업만 정의해주면됨.
+ * 기본적인 feed의 layout인 layout_feed.xml을 이용.
+ */
+package com.khumu.android.signUp;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
+import androidx.databinding.DataBindingUtil;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.khumu.android.KhumuApplication;
+import com.khumu.android.R;
+import com.khumu.android.component.AutoDismissAlertDialog;
+import com.khumu.android.data.Info21UserInfo;
+import com.khumu.android.data.rest.DefaultResponse;
+import com.khumu.android.databinding.FragmentInfo21AuthenticationFormBinding;
+
+import cn.pedant.SweetAlert.SweetAlertDialog;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Info21AuthenticationFragment extends Fragment {
+    private final static String TAG = "Info21AuthenticationFragment";
+    private SignUpViewModel signUpViewModel;
+    private FragmentInfo21AuthenticationFormBinding binding;
+
+    public Info21AuthenticationFragment(SignUpViewModel viewModel) {
+        this.signUpViewModel = viewModel;
+    }
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        // Layout inflate 이전
+        // savedInstanceState을 이용해 다룰 데이터가 있으면 다룸.
+        super.onCreate(savedInstanceState);
+        Log.d(TAG, "onCreate: ");
+        KhumuApplication.applicationComponent.inject(this);
+        this.signUpViewModel = new ViewModelProvider(this.getActivity()).get(SignUpViewModel.class);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        super.onCreateView(inflater, container, savedInstanceState);
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_info21_authentication_form, container, false);
+        // binding하며 사용할 Fragment가 사용하는 변수인 viewModel을 설정해줌.
+        binding.setViewModel(this.signUpViewModel);
+        binding.setFragment(this);
+        // LiveData를 이용해 Observe하기 위해선 그 LifeCyclerOwner가 꼭 필요하다!
+        // 그렇지 않으면 유효하게 Observer로 동작하지 않고 아무 변화 없음...
+        binding.setLifecycleOwner(this.getActivity());
+        View root = binding.getRoot();
+        return root;
+    }
+
+    public void onClickNextBTN(View view) {
+        Context context = Info21AuthenticationFragment.this.getActivity();
+        Info21SignUpActivity activity = (Info21SignUpActivity) context;
+        SweetAlertDialog progressDialog = new SweetAlertDialog(context, SweetAlertDialog.PROGRESS_TYPE);
+        progressDialog.getProgressHelper().setBarColor(ContextCompat.getColor(context, R.color.red_500));
+        progressDialog.setTitleText("인포21 인증 중입니다");
+        progressDialog.setCancelable(false);
+        progressDialog.setContentText("인포21 서버의 상태에 따라 소요시간이 상이할 수 있습니다");
+        progressDialog.show();
+        new Thread(){
+            @Override
+            public void run() {
+                if (false) {
+                    // 개발 중이라 바로 스킵
+                    signUpViewModel.getUser().getValue().setKind("guest");
+                    progressDialog.dismiss();
+                    activity.proceedSignUpStep();
+                }
+                else {
+                    DefaultResponse<Info21UserInfo> resp = signUpViewModel.verifyNewStudent();
+                    progressDialog.dismiss();
+                    // 인포 21 인증 실패
+                    if (resp.getData() == null && resp.getMessage() != null) {
+                        new Handler(Looper.getMainLooper()).post(new Runnable() {
+                            @Override
+                            public void run() {
+                                AutoDismissAlertDialog errorDialog = new AutoDismissAlertDialog(context, SweetAlertDialog.ERROR_TYPE, "인포 21인증에 실패했습니다.", resp.getMessage(), 2000L);
+                                errorDialog.getProgressHelper().setBarColor(ContextCompat.getColor(context, R.color.red_500));
+                                errorDialog.setCancelable(false);
+                                errorDialog.show();
+                            }
+                        });
+                    } else{
+                        // 인포21 인증 성공
+                        activity.proceedSignUpStep();
+                    }
+                }
+            }
+        }.start();
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/khumu/android/signUp/Info21SignUpActivity.java b/app/src/main/java/com/khumu/android/signUp/Info21SignUpActivity.java
index eac9a6b..b02f424 100644
--- a/app/src/main/java/com/khumu/android/signUp/Info21SignUpActivity.java
+++ b/app/src/main/java/com/khumu/android/signUp/Info21SignUpActivity.java
@@ -1,12 +1,8 @@
 package com.khumu.android.signUp;
 
-import android.app.ProgressDialog;
-import android.content.Intent;
 import android.os.Bundle;
-import android.view.Gravity;
+
 import android.view.View;
-import android.view.ViewGroup;
-import android.view.Window;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
@@ -14,6 +10,9 @@
 import androidx.appcompat.widget.AppCompatButton;
 import androidx.core.content.ContextCompat;
 import androidx.databinding.DataBindingUtil;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.ViewModel;
 import androidx.lifecycle.ViewModelProvider;
 
@@ -37,12 +36,18 @@
 import retrofit2.Callback;
 import retrofit2.Converter;
 import retrofit2.Response;
+import retrofit2.Retrofit;
 
 public class Info21SignUpActivity extends AppCompatActivity {
     SignUpViewModel viewModel;
     ActivityInfo21SignUpBinding binding;
     @Inject
+    Retrofit retrofit;
+    @Inject
     UserService userService;
+    SignUpAgreementFragment signUpAgreementFragment;
+    Info21AuthenticationFragment info21AuthenticationFragment;
+    AdditionalFormFragment additionalFormFragment;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -55,65 +60,87 @@ protected void onCreate(Bundle savedInstanceState) {
             @NonNull
             @Override
             public <T extends ViewModel> T create(@NonNull Class<T> modelClass) {
-                return (T) new SignUpViewModel(Info21SignUpActivity.this, userService);
+                return (T) new SignUpViewModel(Info21SignUpActivity.this, retrofit, userService);
             }
         }).get(SignUpViewModel.class);
 
         binding.setViewModel(viewModel);
+        signUpAgreementFragment = new SignUpAgreementFragment(viewModel);
+        info21AuthenticationFragment = new Info21AuthenticationFragment(viewModel);
+        additionalFormFragment = new AdditionalFormFragment(viewModel);
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+        transaction.replace(R.id.sign_up_frame_layout, signUpAgreementFragment);
+        transaction.commit();
     }
 
-    public void onClickSignUpBTN(View view) {
-        SweetAlertDialog progressDialog = new SweetAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.PROGRESS_TYPE);
-        progressDialog.getProgressHelper().setBarColor(ContextCompat.getColor(Info21SignUpActivity.this, R.color.red_500));
-        progressDialog.setTitleText("회원가입 중입니다");
-        progressDialog.setCancelable(false);
-        progressDialog.show();
-        userService.signUp("application/json", viewModel.getUser().getValue()).enqueue(new Callback<UserResponse>() {
-            @Override
-            public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
-                progressDialog.dismiss();
-                if (response.isSuccessful() && response.code() == 201) {
-                    new SweetAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.SUCCESS_TYPE)
-                            .setTitleText("쿠뮤 회원가입 완료")
-                            .setContentText(viewModel.getUser().getValue().getNickname() + "님 환영합니다 >_<")
-                            .show();
-                    Intent intent = new Intent(Info21SignUpActivity.this, LoginActivity.class);
-                    intent.addFlags(intent.FLAG_ACTIVITY_CLEAR_TOP);
-                    Info21SignUpActivity.this.startActivity(intent);
-                } else {
-                    // 400은 validation error. wrong value
-                    if (response.code() == 400) {
-                        // wrong value 에러 메시지 출력
-                        // di container 속 retrofit instance를 load
-                        Converter<ResponseBody, UserResponse> errorConverter =
-                                KhumuApplication.applicationComponent.getRetrofit().responseBodyConverter(UserResponse.class, new Annotation[0]);
-                        try {
-                            UserResponse errorBody = errorConverter.convert(response.errorBody());
-                            SweetAlertDialog errorDialog = new AutoDismissAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.ERROR_TYPE, "회원가입에 실패했습니다 ㅜㅜ", errorBody.getMessage(), 1000L);
-//                                    .hideConfirmButton()
-//                                    .setTitleText()
-//                                    .setContentText();
-//                            Window window = errorDialog.getWindow();
-//                            window.setGravity(Gravity.BOTTOM);
-//                            window.setLayout(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);
-                            errorDialog.show();
-                        } catch (IOException e) {
-                            // 에러 바디 없는 경우.
-                            Toast.makeText(Info21SignUpActivity.this, "알 수 없는 오류가 발생했습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
-                            e.printStackTrace();
-                        }
-                    } else{
-                        Toast.makeText(Info21SignUpActivity.this, "알 수 없는 오류가 발생했습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
-                    }
-                }
-            }
+//    public void onClickNextBTN(View view) {
+//        proceedSignUp();
+//        SweetAlertDialog progressDialog = new SweetAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.PROGRESS_TYPE);
+//        progressDialog.getProgressHelper().setBarColor(ContextCompat.getColor(Info21SignUpActivity.this, R.color.red_500));
+//        progressDialog.setTitleText("회원가입 중입니다");
+//        progressDialog.setCancelable(false);
+//        progressDialog.show();
+//        userService.signUp("application/json", viewModel.getUser().getValue()).enqueue(new Callback<UserResponse>() {
+//            @Override
+//            public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
+//                progressDialog.dismiss();
+//                if (response.isSuccessful() && response.code() == 201) {
+//                    new SweetAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.SUCCESS_TYPE)
+//                            .setTitleText("쿠뮤 회원가입 완료")
+//                            .setContentText(viewModel.getUser().getValue().getNickname() + "님 환영합니다 >_<")
+//                            .show();
+//                    Intent intent = new Intent(Info21SignUpActivity.this, LoginActivity.class);
+//                    intent.addFlags(intent.FLAG_ACTIVITY_CLEAR_TOP);
+//                    Info21SignUpActivity.this.startActivity(intent);
+//                } else {
+//                    // 400은 validation error. wrong value
+//                    if (response.code() == 400) {
+//                        // wrong value 에러 메시지 출력
+//                        // di container 속 retrofit instance를 load
+//                        Converter<ResponseBody, UserResponse> errorConverter =
+//                                KhumuApplication.applicationComponent.getRetrofit().responseBodyConverter(UserResponse.class, new Annotation[0]);
+//                        try {
+//                            UserResponse errorBody = errorConverter.convert(response.errorBody());
+//                            SweetAlertDialog errorDialog = new AutoDismissAlertDialog(Info21SignUpActivity.this, SweetAlertDialog.ERROR_TYPE, "회원가입에 실패했습니다 ㅜㅜ", errorBody.getMessage(), 1000L);
+////                                    .hideConfirmButton()
+////                                    .setTitleText()
+////                                    .setContentText();
+////                            Window window = errorDialog.getWindow();
+////                            window.setGravity(Gravity.BOTTOM);
+////                            window.setLayout(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);
+//                            errorDialog.show();
+//                        } catch (IOException e) {
+//                            // 에러 바디 없는 경우.
+//                            Toast.makeText(Info21SignUpActivity.this, "알 수 없는 오류가 발생했습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
+//                            e.printStackTrace();
+//                        }
+//                    } else{
+//                        Toast.makeText(Info21SignUpActivity.this, "알 수 없는 오류가 발생했습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
+//                    }
+//                }
+//            }
+//
+//            @Override
+//            public void onFailure(Call<UserResponse> call, Throwable t) {
+//                progressDialog.dismiss();
+//                t.printStackTrace();
+//                Toast.makeText(Info21SignUpActivity.this, "서버와 통신할 수 없습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
+//            }
+//        });
+//    }
 
-            @Override
-            public void onFailure(Call<UserResponse> call, Throwable t) {
-                progressDialog.dismiss();
-                t.printStackTrace();
-                Toast.makeText(Info21SignUpActivity.this, "서버와 통신할 수 없습니다. 쿠뮤에 문의해주세요.", Toast.LENGTH_SHORT).show();
-            }
-        });
+    // 회원가입하는 동안 next 버튼이 할 일들
+    public void proceedSignUpStep() {
+        FragmentManager fragmentManager = getSupportFragmentManager();
+        FragmentTransaction transaction = fragmentManager.beginTransaction();
+        if (signUpAgreementFragment.isVisible()) {
+            transaction.replace(R.id.sign_up_frame_layout, info21AuthenticationFragment);
+            transaction.commit();
+        } else if (info21AuthenticationFragment.isVisible()) {
+            transaction.replace(R.id.sign_up_frame_layout, additionalFormFragment);
+            transaction.commit();
+        } else{
+            this.finish();
+        }
     }
 }
diff --git a/app/src/main/java/com/khumu/android/signUp/SignUpAgreementFragment.java b/app/src/main/java/com/khumu/android/signUp/SignUpAgreementFragment.java
new file mode 100644
index 0000000..f267c45
--- /dev/null
+++ b/app/src/main/java/com/khumu/android/signUp/SignUpAgreementFragment.java
@@ -0,0 +1,65 @@
+/**
+ * BaseFeedFragment를 상속받아 크게 추가할 내용은 없고, abstract method인 provideViewModel작업만 정의해주면됨.
+ * 기본적인 feed의 layout인 layout_feed.xml을 이용.
+ */
+package com.khumu.android.signUp;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.databinding.DataBindingUtil;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.khumu.android.KhumuApplication;
+import com.khumu.android.R;
+import com.khumu.android.databinding.FragmentSignUpConsensusBinding;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class SignUpAgreementFragment extends Fragment {
+    private final static String TAG = "SignUpAgreementFragment";
+    private SignUpViewModel signUpViewModel;
+    private FragmentSignUpConsensusBinding binding;
+
+    public SignUpAgreementFragment(SignUpViewModel viewModel) {
+        this.signUpViewModel = viewModel;
+    }
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        // Layout inflate 이전
+        // savedInstanceState을 이용해 다룰 데이터가 있으면 다룸.
+        super.onCreate(savedInstanceState);
+        Log.d(TAG, "onCreate: ");
+        KhumuApplication.applicationComponent.inject(this);
+        this.signUpViewModel = new ViewModelProvider(this.getActivity()).get(SignUpViewModel.class);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        super.onCreateView(inflater, container, savedInstanceState);
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_sign_up_consensus, container, false);
+        // binding하며 사용할 Fragment가 사용하는 변수인 viewModel을 설정해줌.
+        binding.setViewModel(this.signUpViewModel);
+        binding.setFragment(this);
+        // LiveData를 이용해 Observe하기 위해선 그 LifeCyclerOwner가 꼭 필요하다!
+        // 그렇지 않으면 유효하게 Observer로 동작하지 않고 아무 변화 없음...
+        binding.setLifecycleOwner(this.getActivity());
+        View root = binding.getRoot();
+        return root;
+    }
+
+    public void onClickNextBTN(View view) {
+        Info21SignUpActivity activity = (Info21SignUpActivity) this.getActivity();
+        activity.proceedSignUpStep();
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/khumu/android/signUp/SignUpViewModel.java b/app/src/main/java/com/khumu/android/signUp/SignUpViewModel.java
index 3672314..ce67b23 100644
--- a/app/src/main/java/com/khumu/android/signUp/SignUpViewModel.java
+++ b/app/src/main/java/com/khumu/android/signUp/SignUpViewModel.java
@@ -10,7 +10,11 @@
 
 import com.google.android.gms.common.api.Api;
 import com.khumu.android.KhumuApplication;
+import com.khumu.android.R;
+import com.khumu.android.data.Info21UserInfo;
 import com.khumu.android.data.KhumuUser;
+import com.khumu.android.data.rest.DefaultResponse;
+import com.khumu.android.data.rest.Info21AuthenticationRequest;
 import com.khumu.android.data.rest.QrCodeGetResponse;
 import com.khumu.android.data.rest.UserResponse;
 import com.khumu.android.login.LoginActivity;
@@ -21,25 +25,78 @@
 import java.lang.annotation.Annotation;
 
 import lombok.Getter;
+import lombok.NonNull;
 import lombok.Setter;
 import okhttp3.ResponseBody;
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Converter;
 import retrofit2.Response;
+import retrofit2.Retrofit;
 
 @Getter
 @Setter
 public class SignUpViewModel extends ViewModel {
-    final String TAG = "QrCodeViewModel";
-    MutableLiveData<KhumuUser> user;
-    Context context;
-    UserService userService;
+    private final String TAG = "QrCodeViewModel";
+    private MutableLiveData<KhumuUser> user;
+    private MutableLiveData<Boolean> isAgreedPolicy;
+    private MutableLiveData<Boolean> isAgreedPrivacy;
 
-    public SignUpViewModel(Context context, UserService userService) {
+    private Context context;
+    private UserService userService;
+    private Retrofit retrofit;
+
+
+    public SignUpViewModel(Context context, Retrofit retrofit, UserService userService) {
         this.context = context;
+        this.retrofit = retrofit;
         this.userService = userService;
         Log.w(TAG, "QrCodeViewModel: " + userService );
         this.user = new MutableLiveData<>(new KhumuUser());
+        this.isAgreedPolicy = new MutableLiveData<>(false);
+        this.isAgreedPrivacy = new MutableLiveData<>(false);
+    }
+
+    public String getWelcomeMessage() {
+        KhumuUser user = this.user.getValue();
+        return user.getDepartment() + "학과 " + user.getStudentNumber() + "님\n" + "환영합니다!";
+    }
+
+    public UserResponse signUp() {
+        Call<UserResponse> call= userService.signUp("application/json", user.getValue());
+        try {
+            Response<UserResponse> response = call.execute();
+            if (!response.isSuccessful()) {
+                UserResponse errorResp = (UserResponse) retrofit.responseBodyConverter(UserResponse.class, UserResponse.class.getAnnotations()).convert(response.errorBody());
+                return errorResp;
+
+            } else{
+                return response.body();
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return new UserResponse(null, "서버의 응답을 해석할 수 없습니다.");
+        }
+    }
+    public DefaultResponse<Info21UserInfo> verifyNewStudent() {
+        Call<DefaultResponse<Info21UserInfo>> call= userService.verifyNewStudent("application/json", Info21AuthenticationRequest.builder().username(user.getValue().getUsername()).password(user.getValue().getPassword()).build());
+        try {
+            Response<DefaultResponse<Info21UserInfo>> response = call.execute();
+            if (!response.isSuccessful()) {
+                DefaultResponse<Info21UserInfo> errorResp = (DefaultResponse<Info21UserInfo>) retrofit.responseBodyConverter(DefaultResponse.class, DefaultResponse.class.getAnnotations()).convert(response.errorBody());
+                return errorResp;
+
+            } else{
+                Info21UserInfo userInfo = response.body().getData();
+                KhumuUser user = this.user.getValue();
+                user.setStudentNumber(userInfo.getStudentNum());
+                user.setDepartment(userInfo.getDept());
+
+                return response.body();
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            return new DefaultResponse<Info21UserInfo>(null, "서버의 응답을 해석할 수 없습니다.");
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_info21_sign_up.xml b/app/src/main/res/layout/activity_info21_sign_up.xml
index bfe8bec..380de61 100644
--- a/app/src/main/res/layout/activity_info21_sign_up.xml
+++ b/app/src/main/res/layout/activity_info21_sign_up.xml
@@ -14,6 +14,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@color/red_500">
+
         <LinearLayout
             android:id="@+id/toolbar_layout"
             android:layout_width="match_parent"
@@ -28,148 +29,19 @@
                 android:layout_height="16dp"
                 android:src="@drawable/ic_left_arrow_white"/>
         </LinearLayout>
-        <LinearLayout
-            android:id="@+id/header_layout"
+        <FrameLayout
+            android:id="@+id/sign_up_frame_layout"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:paddingHorizontal="32dp"
-            app:layout_constraintTop_toBottomOf="@id/toolbar_layout"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:orientation="vertical">
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginBottom="12dp"
-                android:textColor="@color/white"
-                android:textSize="24dp"
-                android:textStyle="bold"
-                android:text="쿠뮤 회원가입"/>
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:textColor="@color/white"
-                android:textSize="14dp"
-                android:text="인포21에서 사용하는 계정 정보를 입력해주세요."/>
-            <TextView
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:textColor="@color/white"
-                android:textStyle="italic"
-                android:text="쿠뮤는 인포21 비밀번호를 저장하지 않습니다 !\n"/>
-<!--            <TextView-->
-<!--                android:id="@+id/info21_authentication_omit_btn"-->
-<!--                android:layout_width="match_parent"-->
-<!--                android:layout_height="wrap_content"-->
-<!--                android:textColor="@color/gray_300"-->
-<!--                android:text="다음에 인증할래요"/>-->
-        </LinearLayout>
-        <LinearLayout
-            android:id="@+id/form_layout"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="48dp"
-            app:layout_constraintTop_toBottomOf="@id/header_layout"
+            android:layout_height="0dp"
+            app:layout_constraintTop_toBottomOf="@+id/toolbar_layout"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
-            android:paddingHorizontal="24dp"
-            android:orientation="vertical">
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginBottom="32dp"
-                android:orientation="vertical">
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingHorizontal="16dp"
-                    android:textColor="@color/white"
-                    android:text="아이디"/>
-                <EditText
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="4dp"
-                    android:paddingVertical="8dp"
-                    android:paddingHorizontal="24dp"
-                    android:background="@drawable/background_round_white"
-                    android:textColorHint="@color/red_300"
-                    android:textColor="@color/red_500"
-                    android:textSize="14dp"
-                    android:inputType="text"
-                    android:hint="인포21 아이디를 입력해주세요."
-                    android:text="@={viewModel.user.username}"/>
-            </LinearLayout>
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginBottom="32dp"
-                android:orientation="vertical">
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingHorizontal="16dp"
-                    android:textColor="@color/white"
-                    android:text="비밀번호"/>
-                <EditText
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="4dp"
-                    android:paddingVertical="8dp"
-                    android:paddingHorizontal="24dp"
-                    android:background="@drawable/background_round_white"
-                    android:textColorHint="@color/red_300"
-                    android:textColor="@color/red_500"
-                    android:textSize="14dp"
-                    android:maxLines="1"
-                    android:hint="인포21 비밀번호를 입력해주세요."
-                    android:text="@={viewModel.user.password}"
-                    android:inputType="textPassword"/>
-            </LinearLayout>
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginBottom="32dp"
-                android:orientation="vertical">
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingHorizontal="16dp"
-                    android:textColor="@color/white"
-                    android:text="닉네임"/>
-                <EditText
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingVertical="8dp"
-                    android:paddingHorizontal="24dp"
-                    android:layout_marginTop="4dp"
-                    android:background="@drawable/background_round_white"
-                    android:textColorHint="@color/red_300"
-                    android:textColor="@color/red_500"
-                    android:textSize="14dp"
-                    android:inputType="text"
-                    android:hint="사용하실 닉네임 입력해주세요."
-                    android:text="@={viewModel.user.nickname}"/>
-            </LinearLayout>
-        </LinearLayout>
-
-        <androidx.appcompat.widget.AppCompatButton
-            android:id="@+id/sign_up_btn"
-            app:layout_constraintTop_toBottomOf="@id/form_layout"
             app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintEnd_toEndOf="parent"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:minHeight="0dp"
-            android:paddingVertical="8dp"
-            android:minWidth="0dp"
-            android:paddingHorizontal="24dp"
-            android:textColor="@color/red_500"
-            android:textSize="18dp"
-            android:textStyle="bold"
-            android:background="@drawable/background_round_white"
-            android:text="가입하기"
-            android:onClick="onClickSignUpBTN"/>
+            >
+
+
+
+        </FrameLayout>
 
 
     </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/fragment_info21_authentication_form.xml b/app/src/main/res/layout/fragment_info21_authentication_form.xml
new file mode 100644
index 0000000..2d207a1
--- /dev/null
+++ b/app/src/main/res/layout/fragment_info21_authentication_form.xml
@@ -0,0 +1,143 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--가입 시 2번째로 보일 프래그먼트 이용 약관 동의 이후 인포 21을 인증한다-->
+<layout>
+    <data>
+        <variable
+            name="viewModel"
+            type="com.khumu.android.signUp.SignUpViewModel" />
+        <variable
+            name="fragment"
+            type="com.khumu.android.signUp.Info21AuthenticationFragment" />
+    </data>
+    <androidx.constraintlayout.widget.ConstraintLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/red_500"
+        android:paddingVertical="32dp">
+        <LinearLayout
+            android:id="@+id/header_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingHorizontal="32dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:orientation="vertical">
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="12dp"
+                android:textColor="@color/white"
+                android:textSize="24dp"
+                android:textStyle="bold"
+                android:text="인포21 인증하기"/>
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textSize="14dp"
+                android:text="인포21에서 사용하는 계정 정보를 입력해주세요."/>
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textStyle="italic"
+                android:text="쿠뮤는 인포21 비밀번호를 저장하지 않습니다 !\n"/>
+<!--            <TextView-->
+<!--                android:id="@+id/info21_authentication_omit_btn"-->
+<!--                android:layout_width="match_parent"-->
+<!--                android:layout_height="wrap_content"-->
+<!--                android:textColor="@color/gray_300"-->
+<!--                android:text="다음에 인증할래요"/>-->
+        </LinearLayout>
+        <LinearLayout
+            android:id="@+id/form_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="48dp"
+            app:layout_constraintTop_toBottomOf="@id/header_layout"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:paddingHorizontal="24dp"
+            android:orientation="vertical">
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="48dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="16dp"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:text="아이디"/>
+                <EditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="4dp"
+                    android:paddingVertical="8dp"
+                    android:paddingHorizontal="24dp"
+                    android:background="@drawable/background_round_white"
+                    android:textColorHint="@color/red_300"
+                    android:textColor="@color/red_500"
+                    android:textSize="14dp"
+                    android:inputType="text"
+                    android:hint="인포21 아이디를 입력해주세요."
+                    android:text="@={viewModel.user.username}"/>
+            </LinearLayout>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="32dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="16dp"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:text="비밀번호"/>
+                <EditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="4dp"
+                    android:paddingVertical="8dp"
+                    android:paddingHorizontal="24dp"
+                    android:background="@drawable/background_round_white"
+                    android:textColorHint="@color/red_300"
+                    android:textColor="@color/red_500"
+                    android:textSize="14dp"
+                    android:maxLines="1"
+                    android:hint="인포21 비밀번호를 입력해주세요."
+                    android:text="@={viewModel.user.password}"
+                    android:inputType="textPassword"/>
+            </LinearLayout>
+        </LinearLayout>
+
+        <androidx.appcompat.widget.AppCompatButton
+            android:id="@+id/sign_up_btn"
+            app:layout_constraintTop_toBottomOf="@id/form_layout"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:minHeight="0dp"
+            android:paddingVertical="8dp"
+            android:minWidth="0dp"
+            android:paddingHorizontal="24dp"
+            android:textColor="@color/red_500"
+            android:textSize="18dp"
+            android:textStyle="bold"
+            android:background="@drawable/background_round_white"
+            android:text="가입하기"
+            android:onClick="@{fragment.onClickNextBTN}"/>
+
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
diff --git a/app/src/main/res/layout/fragment_sign_up_additional_form.xml b/app/src/main/res/layout/fragment_sign_up_additional_form.xml
new file mode 100644
index 0000000..4fb43e5
--- /dev/null
+++ b/app/src/main/res/layout/fragment_sign_up_additional_form.xml
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--회원가입 시 3번째로 보일 프래그먼트 - 인포21인증 후 추가 정보를 기입한다.-->
+<layout>
+    <data>
+        <variable
+            name="viewModel"
+            type="com.khumu.android.signUp.SignUpViewModel" />
+        <variable
+            name="fragment"
+            type="com.khumu.android.signUp.AdditionalFormFragment" />
+    </data>
+    <androidx.constraintlayout.widget.ConstraintLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/red_500">
+
+        <LinearLayout
+            android:id="@+id/form_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="64dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:paddingHorizontal="24dp"
+            android:orientation="vertical">
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="@{viewModel.welcomeMessage, default=`컴퓨터공학과 2016101168님\n환영합니다!`}"
+                android:textColor="@color/white"
+                android:textAlignment="center"
+                android:textSize="14dp"
+                android:lineHeight="18dp"/>
+            <ImageView
+                android:layout_gravity="center"
+                android:layout_width="128dp"
+                android:layout_height="128dp"
+                android:src="@mipmap/ic_launcher"/>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="32dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="16dp"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:text="닉네임"/>
+                <EditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingVertical="8dp"
+                    android:paddingHorizontal="24dp"
+                    android:layout_marginTop="4dp"
+                    android:background="@drawable/background_round_white"
+                    android:textColorHint="@color/red_300"
+                    android:textColor="@color/red_500"
+                    android:textSize="14dp"
+                    android:inputType="text"
+                    android:hint="사용하실 닉네임 입력해주세요."
+                    android:text="@={viewModel.user.nickname}"/>
+            </LinearLayout>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="32dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="16dp"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:text="이메일"/>
+                <EditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingVertical="8dp"
+                    android:paddingHorizontal="24dp"
+                    android:layout_marginTop="4dp"
+                    android:background="@drawable/background_round_white"
+                    android:textColorHint="@color/red_300"
+                    android:textColor="@color/red_500"
+                    android:textSize="14dp"
+                    android:inputType="text"
+                    android:hint="이메일을 입력해주세요."
+                    android:text="@={viewModel.user.email}"/>
+            </LinearLayout>
+        </LinearLayout>
+
+        <androidx.appcompat.widget.AppCompatButton
+            android:id="@+id/sign_up_btn"
+            app:layout_constraintTop_toBottomOf="@id/form_layout"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:minHeight="0dp"
+            android:paddingVertical="8dp"
+            android:minWidth="0dp"
+            android:paddingHorizontal="24dp"
+            android:textColor="@color/red_500"
+            android:textSize="18dp"
+            android:textStyle="bold"
+            android:background="@drawable/background_round_white"
+            android:text="가입하기"
+            android:onClick="@{fragment.onClickNextBTN}"/>
+
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
diff --git a/app/src/main/res/layout/fragment_sign_up_consensus.xml b/app/src/main/res/layout/fragment_sign_up_consensus.xml
new file mode 100644
index 0000000..435ee4a
--- /dev/null
+++ b/app/src/main/res/layout/fragment_sign_up_consensus.xml
@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--회원 가입 시 가장 첫 번째 프래그먼트 - 이용약관 동의-->
+<layout>
+    <data>
+        <variable
+            name="viewModel"
+            type="com.khumu.android.signUp.SignUpViewModel" />
+        <variable
+            name="fragment"
+            type="com.khumu.android.signUp.SignUpAgreementFragment" />
+    </data>
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/fragment_sign_up_agreement"
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/red_500"
+        android:paddingVertical="32dp">
+        <LinearLayout
+            android:id="@+id/header_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingHorizontal="32dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:orientation="vertical">
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="12dp"
+                android:textColor="@color/white"
+                android:textSize="24dp"
+                android:textStyle="bold"
+                android:text="KHUMU 가입 시작하기"/>
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textColor="@color/white"
+                android:textSize="14dp"
+                android:text="쿠뮤에 가입하길 원하신다면\n아래 사항들에 동의해주시기 바랍니다."/>
+        </LinearLayout>
+        <LinearLayout
+            android:id="@+id/form_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="48dp"
+            app:layout_constraintTop_toBottomOf="@id/header_layout"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:paddingHorizontal="48dp"
+            android:orientation="vertical">
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="48dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:textSize="20dp"
+                    android:text="이용약관 동의"/>
+                <CheckBox
+                    android:layout_width="48dp"
+                    android:layout_height="48dp"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    android:buttonTint="@color/white"
+                    android:checked="@={viewModel.isAgreedPolicy}"
+                    />
+            </androidx.constraintlayout.widget.ConstraintLayout>
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginBottom="48dp"
+                android:orientation="vertical">
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    android:textColor="@color/white"
+                    android:textStyle="bold"
+                    android:textSize="20dp"
+                    android:text="개인정보 수집 동의"/>
+                <CheckBox
+                    android:layout_width="48dp"
+                    android:layout_height="48dp"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    android:buttonTint="@color/white"
+                    android:checked="@={viewModel.isAgreedPrivacy}"
+                    />
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
+        </LinearLayout>
+
+        <androidx.appcompat.widget.AppCompatButton
+            android:id="@+id/sign_up_btn"
+            app:layout_constraintTop_toBottomOf="@id/form_layout"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            android:minHeight="0dp"
+            android:paddingVertical="8dp"
+            android:minWidth="0dp"
+            android:paddingHorizontal="24dp"
+            android:textColor="@{(viewModel.isAgreedPolicy &amp;&amp; viewModel.isAgreedPrivacy) ? @color/red_500 : @color/red_300, default=@color/red_300}"
+            android:textSize="18dp"
+            android:textStyle="bold"
+            android:background="@drawable/background_round_white"
+            android:text="가입 시작하기"
+            android:onClick="@{fragment.onClickNextBTN}"
+            android:enabled="@{viewModel.isAgreedPolicy &amp;&amp; viewModel.isAgreedPrivacy, default=false}"
+            />
+
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>