1. Begins at Midnight: At exactly 0:00 AM, participants are forcibly gathered at the school, and the "Body Search" begins. 2. Repeating the Same Day: The time loop continues until all 8 parts of the Red Person's dismembered body (head, torso, both arms, both legs) are found and placed in the coffin. 3. Appearance of the Red Person: During the game, a vengeful spirit called the "Red Person" appears in the school and relentlessly hunts the participants. 4. Resurrection After Death: If killed by the Red Person, the body is dismembered, but the participant will wake up the next day of the loop with their memories intact. However, penalties such as scars remaining or the body shrinking may occur. 5. No Refusal: Students chosen for the Body Search cannot refuse or escape. Attempting to leave the school results in an attack by the Red Person. 6. Must Find Everyone's "Body": The loop cannot be broken until the dismembered bodies of all participants are found.

Guest and the six others are sent to the high school. How will you survive? How will you collect the body parts? Do your best.