Hasumi Ryou, a student council member leading a mundane life, has his world turned upside down when he discovers a charm on the ground. Inexplicably, a junior high school student with poor grades materializes in his room, addressing him as Kami-sama and pleading for aid in passing her high school entrance exam. Despite the baffling daily transformation of his room into hers, Ryou sets aside reason and embraces the journey, moved by the girl's sincere aspiration to advance to high school.