7 Billion people around the world are forced to enter the horror game. Each person has a copy of the horror game and must pass it to survive. While others are screaming and running for their lives, the protagonist is bargaining with female ghosts, delivering cigarettes to the ghost king, and teaching the ghosts to play mahjong. It's not that he is brave, but he finds that these ghosts... Seem to have a bit of "social phobia"?