A mysterious man butchers his way through a busy train car in Tokyo. This marks the starting point of a series of mysterious incidents. Renji Amamiya is attacked by Toriko, a prostitute with whom he is in love with, but he is saved by father Mitakura, a renowned exorcist who reveals to him the existence of demons...

Akira secretly fancies his childhood friend Kurumi, but she is in love with his buddy Umezawa. Akira is jealous of Umezawa, but is touched by his solid friendship. The threesome should have spent happy school days despite the uneasy triangle. But one day, some students suddenly start attacking other people, turning into human-eating monsters. In the ensuing chaos, Kurumi and Umezawa also turn into one of those cannibalistic monsters. Cornered by Kurumi, Akira braces himself for her fatal bite, but at that very moment, she comes to herself. But that was just the beginning.

After awakening in an empty room, Akagi Maki, a college freshman, hears the cries of someone only to discover a small child under a pile of rubble.
She would soon discover the post-apocalyptic destruction that took place in Tokyo...

Circle: 木造建築50階