Chika Fujiwara

藤原千花

The secretary of the Shuchiin Academy student council. She could not be predicted, her thoughts could not be read. A natural disaster who unconsciously threw everything into chaos simply by being present, also known as __Subject F__. In chapter 222 of the manga, Chika reveals that she played piano because she wanted to be perfect, and she becomes a prodigy at the piano. The expectations of her family and her fans rose, forcing her to practice more. She quit piano after [Kaguya](https://anilist.co/character/120649/Shinomiya-Kaguya) told her to just quit if she didn't like the piano. Soon after Chika challenged Kaguya to a game battle and if she won, she would get to become Kaguya's friend. In the end, she becomes Kaguya's first friend.