A threatening letter arrives at the home of a graduate of the Keiei University Drama Club: "If you want to know the truth about who killed Kimura eight years ago, come to Gokuraku Inn in Hinazuki Onsen at 2 PM on January 9th, 2024." Four people are gathered: Niwata, Sakimoto, Hatori, and Inami. On the night Kimura died, all four were in their fourth year of the drama club, and each of them had a secret they were keeping. [Comic Days](https://comic-days.com/episode/2551460909687428157)

[Comic Days](https://comic-days.com/episode/12207421983351888918)

Fourteen year old Yui Ishii wanted to die. She tried to kill herself many times, but now, for the first time, she wants to live. In a white room, 333 people who share the surname Ishii are gathered together. If they fail at the given task, an explosion will kill them instantly, and only one person can survive this death game. At the Fushimi and Hachisuka detective agency, a call to help find the stage actor named Yuu Ishii. He was known for his unsettling performances, but he disappeared just before the final performance of his latest show. What happened to Yui and Yuu, and why were the 333 people named Ishii chosen? (Source: Kodansha, translated)