A high school student, Miki, loves paranormal phenomenon. She hears a strange rumor about a small shrine. A phantom appears everytime someone tries to destroy it. Getting an archaeologist, Reiko Kaguya, involved, Miki starts investigating it. In the midst of it comes a unisex girl named Hekiru out of nowhere. As Miki digs deeper, she witnesses the unbelievable. A national treasure 'the Sacred Mirror of Prince' was stolen. Reiko and Miki dare to investigate it to retrieve.