Moujuu

A group of boys form a detective club at D Saka Middle School and investigate various mysteries. One case involves a man known as 10-en no Shounen, who appears to have a connection to a cursed location called Mercuro Jigoku. The story also touches on a blind creature, Moujuu, and a mysterious girl named Runna who wanders without a fixed home. Other elements include a night zoo, a character associated with a 15-day lunar phase, and references to a sacred song. Ice shaved ice, Kakigoori, appears as a minor detail in one of the cases.