Utsusemi no Meguri

On a remote island ringed in darkness, two gates open into the Realm of the Dead. The Higammon gate is guarded by humans; the Kogammon gate by demons. Between the two factions lies an ancient wound that neither side has healed. When an unexpected event strikes both gates simultaneously, the protagonist is sent to face the demons directly. What follows unravels the island's true history and binds two hearts in a fate the story calls forbidden.