Hiyori Nishiyama

Hiyori Nishiyama is a very shy 15- to 16-year-old girl whose closest friend, Ritsuka, has known her since kindergarten. Her classmates call her cute, and her nicknames include Hiyo and Hiyorin.

Hiyori admires Yuushin's ease at making friends because socializing is difficult for her. She also has a cat named Pui-pui, which Yuushin found on the school grounds.