Karin Hana is a canon teacher at Akademi High School. She teaches Classroom 3-1.
Karin has shoulder length dark brown hair. Her eyes are light brown. She wears a white top with a black blazer, which is the teacher's uniform. She also wears thin rectangular shaped glasses. Her bust size is 1.5.
Karin 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:
- Karin's name is a reference to the most popular female Japanese names in 2012, the 43rd being Karin and the 42nd being Hana.