A large-scale challenge involving hundreds of people, with the winner receiving numerous prizes and the loser only dying.
Like reality, real death.
Schools where the bell keeps ringing, hospitals where people suddenly appear in the middle of the night, and small courtyards where time goes by abnormally fast.
No one here knows how long they have to live, so they may do something scarier than a ghost.
Be careful. Whether it's something in the dark or something in the light.
No logic! ! ! I wrote happily! ! ! Be careful! ! !
Concept: You never know whether the person harming you is a ghost or a human