54 middle and high school girls walk into a crowded train station, giggling and chatting casually. As the next train approaches, they all cheerfully line up together and hold hands near the tracks - and then they jump into the path of the train. A tragic and shocking incident of mass suicide, made even more shocking by the fact that one girl, Saya, survives completely unharmed. A strange girl with a long history of selling her body and self mutilation, Saya goes from being an outcast to a figure of near-worship. As she gathers more and more followers, her concerned best friend Kyoko begins to uncover the deep and disturbing secrets of this strange cult-like group. She learns, among other things, that it's not the first time something like that has taken shape around the survivor of a mass suicideÂ… and that it won't be the last.
