Unikitty! Season 2 Episode 2
Tooth Trouble
After an accident, Puppycorn knocks his tooth out. After waiting for the Tooth Fairy, she doesn't show up, which leaves Unikitty to pose as the Tooth Fairy exclusively for Puppycorn. She soon takes up the opportunity to help the Tooth Fairy with her job along with her friends, which soon leads to disaster when they go too far.