Ryuugajou Nanana no Maizoukin
龍ヶ嬢七々々の埋蔵金
A high school student named Juugo moves to the Special Student Zone, an artificial island, after being cut off financially by his father. Living on a limited monthly allowance, he rents a cheap apartment unknowingly inhabited by a ghost named Nanana, who was once a NEET. Nanana is connected to a treasure known as the Nanana Collection, which holds an unknown power. Juugo and others in the school's adventure club participate in a treasure hunt to find it.
