I was forcibly pulled into a world of strange rules with a 99% mortality rate. The midnight rules of the mental hospital, the taboos of the death school, the escape rules of the deep-sea cruise ship... When everyone was carefully following the rules in order to survive, I found that I could reverse the outcome of death. "Warning: Don't look in the mirror at three o'clock in the morning." I insisted because I saw the truth behind the mirror. "Rule: Never open the door to Ward 302." I kicked it open because the only key to the door was hidden behind the door. While other players are still trembling for survival, I have begun to regard the strange rules as a score-earning game. This time, I want all the rules to work for me.