It erupted abruptly: the dead rose, plunging Japan into utter pandemonium. While these horrors assailed a high school, Takashi Kimuro had to slay his closest friend after the bite turned him into a walker. Determined to shield Rei Miyamoto, the girlfriend of the man he just killed, they barely flee their school‑turned death trap, only to confront a world already collapsed.
Soon Takashi and Rei unite with other pupils on a quest to locate their kin and uncover the source of this devastating outbreak. Among them are Saeko Busujima, the striking president of the Kendo Club; Kouta Hirano, an otaku obsessed with guns; Saya Takagi, the daughter of a powerful politician; and Shizuka Marikawa, their alluring school nurse. Yet can this group's combined might triumph over the undead apocalypse?