It's midnight. The same day repeats itself in the "Body Search" until the dismembered body is found. Just after Asuka and Takahiro finish their "Body Search," Asuka disappears from this world right before Takahiro's eyes. Three years later, Riku and the other five high school students wake up in the middle of the night at an amusement park. A girl covered in blood, the "Red Person," appears and brutally murders them. However, when they wake up, it's the same morning... Riku and the others realize they've been chosen to participate in the "Body Search."