After the death of his mother, Kuro Takagi was transferred to the private high school Yatsuji, where his father is the owner. But Yotsuji is not just a school. He has a strange rule, "there are no students in the campus after the darkness of the dark!" In his first day of attendance, Kuro and his classmates inadvertently violate the highest school protocol and become victims of the attack of zombies at the Faculty. Although they manage to escape for a short time, it is just a prelude to more meetings with the undead, especially after Kuro discovers their own blood ties and hidden zombie abilities. From there, he is in full swing, since it is a dark, intensive action / comedy is changing at full speed.