Hero Cantare has 3 servers currently which are Global (English and French), Korean (Korean), and Japan (Japanese).
If you are living outside of Korea and installed the game from Google Play or App Store, the game will relocate you to the Global server. In case, all UIs will be displayed in English, and vise versa.
If you already logged in and want to switch the server, you should restart the app first.
If you loaded all game data successfully, find the server’s name on the right bottom of the ‘Touch To Continue’ scene.
Tap the server’s name. You will see each server’s name on the list.

※ Please be noticed that game data cannot be transferred to other servers. Make sure in which server your game data is saved.