Seasons & Episode
9 A.M. The students have gathered and are wrapping the body of Daigoro Tokuyama in tarp. They have a certain plan in mind for the night. Just then, a security guard comes in. They make an excuse for being there, and somehow make him leave. That's when they find a man peering into the classroom. Will they be able to carry out their plan?
Daishiro , Tokuyama's twin, is pretending to be Daigoro to find out what happened to his missing brother. The security guard closes in on him, demanding "the list." Meanwhile, Yurina Hirate is closing in on Yuka Sugai . Yuka was on Tokuyama's list. The students accuse her of killing him to hide the secret of the list, but...
As they prepare for the school festival, three graduates of Keyaki Private High come looking for Tokuyama to invite him to their reunion. Yurina Hirate tells them he's absent, but they don't believe her since they just received a message from him saying he's in the classroom. Just then, Kanzaki comes in, and for some reason, the graduates are surprised.
The evening before the school festival, the janitor Hashibe shows Yurina Hirate a DVD. Neru Nagahama takes it, just to see that it's been broken. It's the confiscated DVD that Tokuyama gave to her the day he was killed. The class had watched it before, but they'd seen nothing suspicious. Who did it? Meanwhile, they find out who'd been sending the messages.
One morning, students find their homeroom teacher Tokuyama Daigoro’s body on the floor of the classroom. A strange school life begins as the students work hard to hide the presence of their teacher's corpse in their classroom. Other teachers from the Academy, their homeroom teacher's wife, his mistress, police, and reporters... One-by-one they visit the classroom and the students face the risk of being discovered. Is it possible to continue to hide it?! And who was it who killed him?!