Kazuhiko, a graduate of a prestigious university, wasn't enjoying his life, until he takes a job at a bathhouse. Then he discovers that the baths are used as a space for killing people after closing hours.

As the sole survivor of a horrendous and rather mysterious accident, teenage Mitsuko's day is off to a bad start. An unstoppable force of nature, a doomed field trip, and a strange case of amnesia easily coexist in a bizarre parallel universe, where a desperate Mitsuko is always on the run from something inexplicable, intangible, and utterly deadly. However, amid piles of fresh corpses, mounds of scorching bullet shells, and rivulets of fragrant adolescent blood, Mitsuko must fight to stay alive, before her already messed-up day becomes even stranger. But one question still remains: who or what is the enemy?

Kaede is fed up with routine chores at her workplace and the relationship with her boyfriend. Her mood brightens when Takuya, with whom she and her brother Ryuta were befriended in childhood, returns to her home town. After reuniting, the friends spend a great time together. But when Ryuta’s girlfriend Yuki gets pregnant, confessions are made that change their relationship.