If you want to modify your signature, you can ask customer service. There is no way to correct the real signature in "Do you want to correct the truth: the legend of mortals", just consult the official customer service of the game directly. As long as the player can prove that he really needs to change the name of the game character, he will have the opportunity to modify the signature directly through the customer service of the game, so if you want to repair the real signature, you can ask the customer service.