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.
Ibuki Hiiragi
Sakura Kayano
Reina Kageyama
Hayato Kai
Kaho Usami
Yuzuki Suwa
Suzune Minakoshi
Ren Nakao
Sara Hanaoka
Hiroto Tateno
Hiroki Aizawa
Kodai Fuwa
Saya Asami
Soma Nishizaki
Runa Horibe
Misaki Yuki
Karen Kumazawa
Kakeru Makabe
Rin Akiba
Yuka Tsujimoto
Kaito Satomi
Arata Hyodo
Aoi Mitsunaga
Miki Kawai
Yudai Seo
Hana Uozumi
Kota Ishikura
Ken Sunaga
Aika Komiyama
Reo Kanazawa
Toru Iragashi
Makoto Gunji
Ryoichi Miyagi
Yamato Takechi
