All seniors at a high school stay together at a camp, including student Chinatsu. On their first day, the home room teacher announces that all the students must play the card game "Old Maid". In order to reverse the declining academic abilities of its younger generation, the Japanese government planned this camping program. In this card game, the students that lose will meet their deaths.
Chinatsu Akasawa
Kana Ohno
Minako Yokoe
Yohei Takashima
Naoya Yokoyama
Satoshi Kanda
Yoko Ueda
Unknown Role
Principal
Teacher Takizawa
Chihiro Shimokawa
Unknown Role
Keiichi Asano
Unknown Role