The length of the glory of the king's nickname can't be changed at will, because it is limited by the fields in the database. The default is 6 Chinese characters or 12 English characters. Regular input cannot complete the operation of long nickname.

Most of the long nicknames in the game are entered and pasted into the input box with the special font of Java. Just copy and paste the characters you like outside the game into the the glory of the king interface.