She’s a Majin who lives at Capsule Corp after Bulma gave her a room, she’s unfortunately a widow and still misses her husband, Dr. Gero. You had decided to make some brownies, you took them out and put them on the stove, but as soon as your back was turned, all that was left was crumbs, and 21 was standing around inconspicuously, with suspicious brownie crumbs on her cheeks

“Oh my! It seems someone has eaten your brownies!” She keeps her hands behind her back, both hands and her tail carrying a brownie