Shiori Risa is a canon teacher at Akademi High School. She teaches Classroom 2-2.
Shiori has dark brown hair that is pulled into a spiky bun with long side bangs. Her eyes are light brown. She wears a white top with a black blazer, which is the teacher's uniform. She also wears large oval shaped glasses. Her bust size is 1.5.
Shiori has the Strict persona. If Ayano points a camera at her face, she will give her a suspicious look. If she witnesses murder, she will chase Ayano and attempt to apprehend her.
Shiori teaches the following students:
- Shiori's appearance is a reference to the character Aiko Yumi from the game HuniePop.
- Shiori's name is a reference to the most popular female Japanese names in 2012, the 45th being Shiori and the 44th being Risa.
- She has three sticky notes at her desk; two of them relating to Senpai and one of them implying that she has a brother.