diff --git a/app/build.gradle b/app/build.gradle
index 4f8dfd2..2570292 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -31,6 +31,10 @@
     }
 }
 
+//repositories {
+//    mavenCentral()
+//}
+
 dependencies {
 
     implementation 'androidx.appcompat:appcompat:1.4.2'
@@ -47,4 +51,8 @@
 
     implementation 'com.squareup.retrofit2:converter-jackson:2.5.0'
     implementation 'com.squareup.retrofit2:converter-scalars:2.1.0'
+
+    //google用
+    implementation 'com.google.maps:google-maps-services:0.2.5'
+    implementation 'org.slf4j:slf4j-nop:1.7.25'
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 219fcb3..f1f183a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -26,7 +26,7 @@
 
         <meta-data
             android:name="com.google.android.geo.API_KEY"
-            android:value="YOUR_API_KEY" />
+            android:value="${MAPS_API_KEY}" />
 
         <activity
             android:name=".MainActivity"
diff --git a/app/src/main/java/com/example/nemophila/MainActivity.java b/app/src/main/java/com/example/nemophila/MainActivity.java
index a01b35d..34a3d8c 100644
--- a/app/src/main/java/com/example/nemophila/MainActivity.java
+++ b/app/src/main/java/com/example/nemophila/MainActivity.java
@@ -43,9 +43,9 @@
     public void onMapReady(GoogleMap googleMap) {
         mMap = googleMap;
 
-        // Add a marker in Sydney and move the camera
-        LatLng sydney = new LatLng(-34, 151);
-        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
-        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
+        // Add a marker in Sydney and move the
+        LatLng ntlab = new LatLng(34.73, 135.26);
+        mMap.addMarker(new MarkerOptions().position(ntlab).title("Marker in ntlab"));
+        mMap.moveCamera(CameraUpdateFactory.newLatLng(ntlab));
     }
 }
\ No newline at end of file