Hayakawa Ruka

A serial killer comes to a magical girl who is good at divination. She hides in a closet and overcomes the murderer, who sings the nursery rhyme "Momotaro" as he commits his murder, and decides to exterminate him. Accompanied by Kokkuri-san, Merry-san, and Okiku-san, the magical girl sets out to the accidental property where the murderer is hiding.

Akira Minato, a middle-aged coin laundry owner, befriends Shintarō Katsuki, a high schooler. Their bond deepens as Shintarō learns about Akira's identity.

A mystery that unfolds from the perspective of a full-length refrigerator. The points of incidents that occur in a rich man's house, an idol's room, a movie set, a love hotel, a members-only bar, and an abusive family are connected. What happens inside the room cannot be seen from the outside. The environment sometimes makes people cruel. The image you see through the refrigerator reflects it.