How do you change your account nickname in Hero Cantare? This is the name that appears on your profile, and this is the name that other players can see. In order to change your account's nickname, press your character icon on the upper left side of the main screen.
Your profile will appear with your current nickname, Guild, and current exp. Press the "Change Nickname" button.
Change your nickname here. The first nickname change is free, while the next ones will cost you diamonds so choose carefully when changing your nickname.
We have questions and answers related to this topic which may also help you: