In 2005, a sophomore student named Igarashi Mahane took a private train to Soukyo City. She disappeared after alighting at a station named "Kisaragi". Five years later, her lover, Yokoyama Shizuno, began investigating the case and strange stories started to unfold one after another.

In 2005, a sophomore student named Igarashi Mahane took a private train to Soukyo City. She disappeared after alighting at a station named "Kisaragi". Five years later, her lover, Yokoyama Shizuno, began investigating the case and strange stories started to unfold one after another.