After barely escaping from the Beyond, an alternatedimension swarming with bloodthirsty monsters, high-schoolers Yamagishi andSendo realize their lives aren't going back to normal anytime soon. Determinedto delve deeper into the secrets of the Beyond, they team up with the mysteriousparanormal investigator Akisato, under whose grudging guidance they beginto uncover a world of occult sects and black magic. When Yamagishi stumblesacross an unknown sigil that he somehow recognizes, it quickly becomes clear hisinvolvement is no mere coincidence. He's sure the creepy symbol has something todo with the orphanage where he grew up — and he's determined to findout truth, even if he has to go back into the Beyond to find the answers to hismissing past.