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Teiichi Niiya is a first year middle-school student at Seikyou Private Academy, an institution known for mysterious occurrences. The boy quickly finds these rumors to be true when he meets Yuuko Kanoe, a beautiful, mischievous girl who quickly takes a liking to him... and happens to be a ghost who seemingly no one else can see! Unable to remember anything about her past, Yuuko enlists Teiichi’s help to discover the truth, and together they join the school's Paranormal Investigation Club. With fellow memebers Momoe and Kirie, the pair will investigate the many strange happenings around campus, including the shadowy circumstances surrounding Yuuko’s death.
One day, while testing out his new video camera on a bridge in town, Kaito Kirishima sees a bright blue light in the sky and is inexplicably knocked over the side, awakening the next morning in bed with no memory of the event. But upon heading to school, the boy notices a new face that’s familiar to him somehow - her name is Ichika Takatsuki, and she’s new in town. Kaito’s friends, noticing his interest in the girl, all resolve to make a movie this summer and cast her as the lead, to which she immediately approves. Now, the group embarks on what will be a truly memorable summer that no one will forget, as Kaito and Ichika slowly, and clumsily, begin to fall in love.