Kitahara Mizuki finds herself trapped in school at night when she overslept after class. However, as she tries making her way out of school, the haunting rumor of the school caught up to her, before she's saved by a mysterious boy. Or so, it would seem...

As a single night's strange event changes her life forever and throws her into the world of curses, demons and ghosts, Mizuki finds out that the ghosts are NOT human! What does that mean for the story? For this world? Find out as our idiosyncratic duo finds out the truth behind this world, and in time... themselves...