There exists one who seeks to rectify the world. Is this person good or evil? A series of murders, believed to be committed by a killer known as the "Mask Collector," who skins the faces of his victims, has occurred, prompting the police to establish an emergency investigation headquarters. Responding to the police's request, Kuroko begins by kidnapping a young girl and visits a person who is the prime suspect. Meanwhile, Hinako, who has been entrusted with the kidnapped girl, heads to an amusement park with her friends. Kuroko carries out his work with a calm demeanor, while Hinako plays innocently...