Herschel Klosmo is a young man who has just earned his title as an Ultimate. He enrolls in the prestigious Hope's Peak Academy as the Ultimate Police Officer. Unfortunately, nothing goes as planned. After walking through the doors of the Academy, it's as if all his memories have vanished! Only a vague memory of a bus ride remains etched in Herschel's mind. He and his classmates all find themselves in a strange mansion, the Blessed Souls Manor. It is a place lost in the middle of a forest that seems impossible to escape from. A peculiar squirrel then announces to them that they must kill each other if they ever hope to flee.

Will they be able to rebel against the unfair rules of this death game...?