Kawarazaki Manor was a mansion located deep in the mountains, as splendid as it was foreboding. Yuuma was dragged there by his girlfriend Anna to celebrate the birthday of the master Nawatsuma and visit with her cousins Maki and Tomoki. Experience Yuuma's nightmare as he lives and re-lives the next two days over and over in the distorted reality of Kawarazaki Manor. Can Yuuma and Anna escape with their sanity? Or will they succumb to the Manor's madness?