Other name: Nanana's Buried Treasure, 龍ヶ嬢七々々の埋蔵金 Description: The story centers around the treasure of Nanana, a ghost who was once a beautiful but NEET (Not in Education, Employment or Training) girl. A boy named Juugo was disowned by his father and forced to transfer to a high school on the 'Special Student Zone,' an artificial island. With only 40,000 yen a month to live on, Juugo chooses a low-rent apartment that happens to be haunted by Nanana. Juugo and members of the school's adventure club join a 'treasure hunt royale' on the island for the Nanana Collection, a treasure that possesses a mysterious power.