Ryuugajou Nanana no Maizoukin

Disowned by his father, Jugo Yama moves to Nanae Island and finds an unusually cheap room. The catch is its resident ghost: Nanana Ryugajo, a murdered girl who refuses to give up her games, pudding or home.

Nanana once collected extraordinary treasures now hidden in the island’s ruins. Jugo joins a treasure-hunting club and faces elaborate trials to retrieve them, discovering that his fellow adventurers’ motives can be as dangerous as the traps themselves.