The last surviving member of her clan, Mirai Kuriyama is cursed with the terrifying ability to control and manipulate blood. Akihito Kanbara being half human and half youmo has made him immortal and doomed to a life alone. Alone their future seems bleak, but when a chance encounter brings them together, it becomes clear that they share more than just an unexpected bond. Beyond the world that we know, in a realm where nightmares are real and legends walk, their future awaits "Beyond The Boundary".