Nanana's Buried Treasure

Nanana's Buried Treasure is a TV anime adaptation of the light novel series by Kazuma Ōtorino, produced by A-1 Pictures under the direction of Kanta Kamei, with series composition by Hideyuki Kurata. Blending comedy, mystery, and supernatural elements, the story follows Juugo Yama as he teams up with the enigmatic ghost Nanana Ryuugajou to uncover legendary treasures hidden across a unique island. With a colorful cast including Tensai Ikkyuu and a sharp mix of humor and puzzle-solving adventure, this series delivers an entertaining watch for fans of light novel adaptations and genre-blending anime.

Nanae Island was born from an extraordinary vision — a place where young people could pursue any dream without limits. Brought to life by seven genius students known as the GREAT 7, led by the spirited Nanana Ryuugajou, this artificial island has flourished over twelve years into a thriving special student zone, home to 100,000 residents with students making up the vast majority. Juugo Yama, a high school student freshly disowned by his father, arrives on the island seeking a fresh start and a place to call his own. But his plans for a quiet solo life are immediately upended when he discovers his new apartment already has an occupant — the ghost of Nanana Ryuugajou herself, a young woman murdered a decade ago who remains bound to the room. Now sharing his living space with this unexpected spirit, Juugo is drawn into a world of ancient ruins, hidden treasures known as "Nanana's Collection," and a colorful cast of characters. Mystery, strategy, and thrilling adventure await around every corner of this remarkable island.