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Those of you who were invited to Rock Town to participate in the music carnival were taken to a killer's room because of the hotel's own incident, and the killer was right outside the door. On the mobile phone of the hotel, there was a call from the future, "You will be attacked and killed by killers outside the door in 60 minutes. Fortunately, due to the unexplained chaos of time and space, you will have the opportunity to change your future." To survive, you must take Other lives in exchange? Seeing the minutes and seconds passing by, your lives are maintained by a little boy named Tony?