Because of her frequent encounters with the supernatural and a hectic school schedule, Nene Yashiro hardly finds any respite until Kamome Academy"s yearly sleep‑over arrives. She looks forward to letting loose with her best friend Aoi Akane and the rest of their class at the gathering. Unaware, the sleep‑over falls on Urabon day, when the veil between living and dead thins, letting malevolent spirits roam free. The night is filled with laughter, games, and whispered promises of adventure, but the tension lingers as unseen eyes watch from shadows. When a sinister specter threatens her, Nene is saved by an enigmatic being: Shinigami, the Sixth Wonder who can ensnare souls with his flute. At that instant he spots Aoi and snatches her, planning to use her as a sacrifice to seal the barrier forever. Together with Hanako‑kun and Akane Aoi, Nene must venture into the deepest recesses of the underworld to rescue her friend before it"s too late. Even the moon seemed to keep a gaze.
