Hiyoko and Michiko were on their way home when Hiyoko became the victim of a terrible accident. Upon waking up, Hiyoko found herself in a familiar place, but surrounded by unfamiliar faces. The three girls that were by her side when she awoke, Yukiko, Miyuki, and Aiko, all claimed they were Hiyoko's best friends at school. However, Hiyoko didn't know them at all. Only when she finally looked at the date and took notice of her surroundings, Hiyoko finally realized that she was thrust back three years into the past, when she was still in high school. Hiyoko chose to be honest, and told them that she had no recollection of any of them. However, she still kept the fact that she was from a parallel-future where she didn't know any of these girls, a secret. Hiyoko tried to figure out how she could return to her own world, and why she was sent here in the first place. And who was this girl she replaced? Was it really her, or something far more sinister? Then suddenly, a new student, Ayano, arrives who throws everything out of balance when Ayano claims that she knows who Hiyoko really is... [From Kickstarter]