On the 10th of October in 1976, a mere infant was given seven types of power and he was told that when he grew up he must find and protect Princess Kushinada. One morning in 1992, Momiji Fujumiya was walking to school when a man appeared and said he was going to kill her. Momiji Fujumiya is a sacrifice to the Kushinada Princess. The man shows up again and saves her from a monster, only to kill her and destroy the monster called Aragami and to free himself. But he can’t seem to kill her, physically and mentally. So he is forced to kill the monsters one by one with Momiji Fujumiya’s help.