Mitsuru moved from the countryside to the city with her father, Fuma Akai—a man who once made a name for himself as a legendary Monster Killer.On her very first day at a new school, she was targeted by the resident queen bee. While being cornered and assaulted in a school warehouse, the scene turned into a nightmare as a swarm of monsters suddenly appeared…It seems these creatures are linked to Mitsuru’s “Special Constitution,” yet for some reason, no one else can see them. In the middle of the carnage, Mitsuru is abducted by a suspicious duo posing as police officers!When Fuma learns his daughter has vanished, his fury erupts, and he vows to bring her home. The battle between the ultimate father and the most sinister of enemies begins now!