With graduation 10 days away, homeroom teacher Hiiragi gathered all 29 students of class 3-A and proclaims them his hostages. His last lesson regards the death of a student that passed away a few months before. Nobody will be able to graduate until the truth is known.
Masaki Suda , Mei Nagano , Mio Imada , Ryota Katayose , Moka Kamishiraishi , Nana Mori , Seiichi Tanabe , Rina Kawaei , Aki Moriyama , Mayuu Yokota
