There are two main reasons for installation failure as following.

1) Your device is not supported
2) Your device is running an out-of-date version

In case you can’t install the game although your device is supported, please try to install the game after upgrading your OS to the latest version.

Even though you have tried the said measures but can’t install it, please make an inquiry to the customer service center with the following information.

[Required information]
1. Device model:
2. The version of your OS
3. A screenshot with the installation failure message

We beg your pardon in advance for the possible delay to find and understand the issue in detail.

Thank you

[Installation and execution] Minimum Specifications of Mobile Device

[Minimum Specifications]
Android: Galaxy S7
OS: Android 8.0

How to check your OS version
[Settings -> About device (mobile phone information) -> Software information -> Android version]

Push function gives you a notification to introduce to you any in-game event.
If you wish to deactivate the push alarm, please go to settings > default > change alarm status to “block”.

Thank you

When a new update does not apply to the game, please review the following information.
1. Insufficient memory space
2. Device OS version

You can resolve these issues by the following measures.
Please uninstall unnecessary or unused applications to secure the memory for an effective update.
As we update the game, the minimum version may be upgraded. In this case, you will not be able to apply a new update to the game.
We suggest to keep your OS version up-to-date and check on the availability of the game with your current OS version.

If the issue can’t be resolved by given measures, please make an inquiry to the customer service center with the following information.
1. Device model:
2. OS version of your device:
(To find out your OS version, please go to settings > device information > software information > Android version (OS version)

Thank you.

The following reasons may cause an abnormal termination abruptly.
1. Insufficient memory
2. Network and telecommunication conditions

The memory is a processing space for running the game, not for storing. Therefore, spare space in memory is necessary.

If the game collides with other apps while playing it, it may cause a problem. Therefore, please make sure that unused apps are uninstalled and check on other applications running unnecessarily on the background.

Unstable network conditions are one of the main reasons why games crash, so we recommend playing on a stable network.

We are putting in our best effort to assure the best environment for you to play our game and we will keep up to provide the best service.

Thank you.

If you wish to get a refund for the in-game item purchase, you should make an inquiry at our customer service page with the following information.
Please note that we can only issue a refund for the gold or items that are not used within 7 days of the purchase.

For details, please refer to the Terms and Conditions.
1. Account Information:
2. In-game ID:
3. Name of the purchased item:
4. Order number:

# How to find Google order number
1. Log in your G-mail account > Capture a receipt
2. If you did not receive any receipt in your G-mail, you should go to Google Wallet and capture the receipt.

# How to find your Gmail account ID in the Google Play store
Log in to the Google Play Store on your device > Tap Menu on the top-left of the main page > Find your Google account (OOOOOO@gmail.com)

Thank you.

When you did not receive an item after you made payment for a purchase, please review the following details.

1. You may need to check your inventory after a while because it may take a bit more time to receive the purchased item depending on the status of your network.
2. You can terminate the game and log in again.
If neither of them works, please contact the customer service center with the following information.

[Required information]

1. Account Information:
2. In Game ID:
3. Server name:
4. Order number(Starts with GPA.xxxx-xxxx-xxxx-xxxx):

# How to find Google order number
1. Log in your G-mail account > Capture a receipt
2. If you did not receive any receipt in your G-mail, you should go to Google Wallet and capture the receipt.

# How to find your Gmail account ID in Google Play store
Log in Google play store on your device > Tap Menu on the top-left of the main page > find your Google account (OOOOOO@gmail.com

Thank you

Please refer to the protocol below.

1) Go to [Setting]
2) Tap [Application] or [App]
3) Find [Google Play Store] or [PlayStore]
4) Touch [Storage] and Tap [Clear Data] and [Clear Cache]

Thank you

We would like to notify you that we do not retain your personal information since we do not receive membership applications from you.
We, developers, cannot verify the information of your linked Google accounts although you inform us of your in-game information because it is not accessible to us. Therefore, please understand that we can’t inform you of any updates in the game if you lose your Google account information.
If you link your Google accounts to Google Play when you play the game, you can find your lost Google account in Google website and find your account in Google Play.
If you manage to find and link your lost account to the game again, you can continue to play the game from the saved information.

Thank you