Having trouble installing Self-Service Knight : idle RPG? 

If you're installing the game and receive a "not enough storage space" message on your device, please refer to the following:
 
  ■  How to clear app and internet cache
 - App: Click the installed application in " Settings - Applications" and click the "Clear Cache" button.
 - Internet: Launch the Internet - click the menu key and click the 'Clear cache' button in 'Settings - Privacy/Settings'
 
  ■  Deleting unused applications and information
 - Delete information stored in the internal memory such as applications, photos, videos, etc. that you are not currently using.
 
 ※ Note
 1. Guest accounts may have their game information deleted when deleting game cache/data. Be sure to check if your account is linked! 
 2. The method of deleting cache/data may differ depending on the device you are using.