diff --git a/app/src/main/java/one/nem/kidshift/MainActivity.java b/app/src/main/java/one/nem/kidshift/MainActivity.java
index 63c975e..bcea85c 100644
--- a/app/src/main/java/one/nem/kidshift/MainActivity.java
+++ b/app/src/main/java/one/nem/kidshift/MainActivity.java
@@ -177,10 +177,12 @@ public class MainActivity extends AppCompatActivity {
         boolean isEditMode = false;
         View view = getLayoutInflater().inflate(R.layout.user_info_dialog_layout, null);
         if (userSettings.getAppCommonSetting().isChildMode()) {
-            ((TextView) view.findViewById(R.id.userNameTextView)).setText(
-                    childData.getChild(userSettings.getAppCommonSetting().getChildId()).join().getName());
-            ((TextView) view.findViewById(R.id.emailTextView)).setText("子供モードはメールアドレスを設定できません");
-            ((Chip) view.findViewById(R.id.chip)).setText("子供/Child");
+            childData.getChild(userSettings.getAppCommonSetting().getChildId()).thenAccept(childModel -> {
+                ((TextView) view.findViewById(R.id.userNameTextView)).setText(childModel.getName());
+                logger.debug("ChildModel: " + childModel.getName());
+                ((TextView) view.findViewById(R.id.emailTextView)).setText("子供ユーザーはメールアドレスを設定できません");
+                ((Chip) view.findViewById(R.id.chip)).setText("子供/Child");
+            }).join();
         } else {
             parentData.getParentDirect().thenAccept(parentModel -> {
                 ((TextView) view.findViewById(R.id.userNameTextView)).setText(parentModel.getName());
@@ -190,6 +192,13 @@ public class MainActivity extends AppCompatActivity {
             }).join();
         }
 
+        // Workaround
+        if (userSettings.getAppCommonSetting().isChildMode()) {
+            view.findViewById(R.id.userNameEditButton).setVisibility(View.GONE);
+        } else {
+            view.findViewById(R.id.userNameEditButton).setVisibility(View.VISIBLE);
+        }
+
         view.findViewById(R.id.userNameEditButton).setOnClickListener(v -> {
             EditText editText = new EditText(this);
             editText.setText(((TextView) view.findViewById(R.id.userNameTextView)).getText());
diff --git a/data/src/main/java/one/nem/kidshift/data/impl/ChildDataImpl.java b/data/src/main/java/one/nem/kidshift/data/impl/ChildDataImpl.java
index 0f97cf9..d1a9861 100644
--- a/data/src/main/java/one/nem/kidshift/data/impl/ChildDataImpl.java
+++ b/data/src/main/java/one/nem/kidshift/data/impl/ChildDataImpl.java
@@ -36,7 +36,21 @@ public class ChildDataImpl implements ChildData {
 
     @Override
     public CompletableFuture<ChildModel> getChild(String childId) {
-        return null;
+        return CompletableFuture.supplyAsync(() -> {
+            Call<ChildResponse> call = kidShiftApiService.getChild(childId);
+            try {
+                Response<ChildResponse> response = call.execute();
+                if (response.isSuccessful()) {
+                    assert response.body() != null;
+                    logger.info("子供取得成功(childId: " + response.body().getId() + ")");
+                    return ChildModelConverter.childResponseToChildModel(response.body());
+                } else {
+                    throw new RuntimeException("HTTP Status: " + response.code());
+                }
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        });
     }
 
     @Override
diff --git a/data/src/main/java/one/nem/kidshift/data/retrofit/KidShiftApiService.java b/data/src/main/java/one/nem/kidshift/data/retrofit/KidShiftApiService.java
index 705c160..3a9bd22 100644
--- a/data/src/main/java/one/nem/kidshift/data/retrofit/KidShiftApiService.java
+++ b/data/src/main/java/one/nem/kidshift/data/retrofit/KidShiftApiService.java
@@ -137,6 +137,15 @@ public interface KidShiftApiService {
     @Headers(AuthorizationInterceptor.HEADER_PLACEHOLDER)
     Call<ChildListResponse> getChildList();
 
+    /**
+     * 子供情報取得
+     * @param id 子供ID
+     * @return ChildResponse
+     */
+    @GET("/child/{id}")
+    @Headers(AuthorizationInterceptor.HEADER_PLACEHOLDER)
+    Call<ChildResponse> getChild(@Path("id") String id);
+
     /**
      * 子供追加
      * @param request ChildAddRequest