A terrifying manga adaptation of the extreme death game that has become a huge hit on "Teller-novel"!! When she wakes up, she finds herself inside a pitch-black "box"――. Yuuri participates in a suspicious part-time job with an outrageous hourly wage of 300,000 yen. What awaited her was a merciless message from a "Game Master" on her smartphone and a high-stakes escape game where she must gamble with her life! The rule is simple: escape from the room you are in within a one-hour time limit. However, the moment you perform a certain [NG Action], a lethal hypnosis is triggered!! Will Yuuri be able to slip past the traps of death and survive this despair――!? A tense situational thriller where a moment of carelessness invites death, begins now!