If you're having trouble locating the update button for the app, please follow these manual update steps:

■ For Google Play Store Users:

1. Open the Google Play Store.

2. Tap your profile icon located in the top right corner.

3. Select "Manage apps & device."

4. Find "Dragon Knights: Idle RPG" and tap on it to update.

　※ If the above method doesn't work:

1. Go to your device's settings.

2. Select "Apps."

3. Find "Google Play Store" and tap on it.

4. Go to "Storage" and then "Clear Cache."

■ For Apple (iOS) App Store Users:

1. Open the App Store.

2. Tap your profile icon located in the top right corner.

3. In the "Settings" tab, look for the "Dragon Knights: Idle RPG" update button.

　※ If you're unable to locate the update button, please try refreshing the App Store.

These steps should help you manually update your app. If you encounter any further issues, feel free to reach out for assistance.