Yôichi Minamikawa

한 여고생이 최근 휴대전화로 인기를 끌고 있는 데이트 시뮬레이션 게임을 중심으로 벌어지는 살인 미스터리에 휘말리게 된다. 게임 내 캐릭터로만 존재하는 것처럼 보이는 여성이 어찌된 일인지 남자 플레이어들을 하나씩 죽이고 있다

After a childhood friend's suicide, Hideaki and his former classmates reunite to pay their respects. Soon after, a DVD, marked X arrives revealing a man being tortured, triggering a flashback in Hideaki, reminding him of witnessing a schoolmate being subjected to humiliating batsu (punishment) games. One evening, Hideaki is kidnapped and when he awakens the next day, he discovers he is in a recreation of his old school-room, along with his fellow classmates. Trapped and held captive by mysterious hooded figures, each of them must now play a brutally violent, version of the punishment game, in order to survive.

A group of seven random players are chosen to participate in the next 'Twilight Syndrome' game created by Makino Shuzo. This time, it is at an amusement park, known as the Twilight Zone.