Board Thread:General Discussion/@comment-28362353-20180728011219/@comment-28362353-20180728213850

CakeBuu wrote: Is she going to be permenent or just like Arale? Arale is a Dr. Slump character, who has appeared in Dragonball before. But since she wasn't actually a DB Character, she was a limited time thing.

21 on the other hand, is a DB Character. So its safe to say she will return.