Shiori Fuyumura

One of [Sanda's](https://anilist.co/character/246680/Kazushige-Sanda) classmates who is unusually tall for her age. She broke the seal on Santa Claus's powers in order to request his help in solving the mysterious disappearance of her friend [Ono](https://anilist.co/character/363834/Ichie-Ono).