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On her sixteenth birthday, orphan Himari Momochi inherits her ancestral estate that she’s never seen. Momochi House exists on the barrier between the human and spiritual realms, and Himari is meant to act as guardian between the two worlds. But on the day she moves in, she finds three handsome squatters already living in the house, and one seems to have already taken over her role!
All Morioka Kohei wants to be a regular photographer, but all he ever seems to capture on film is ghosts! With 70 percent of his photos inhabited by the undead, Kohei has managed to gain not only a reputation, but also a job at an occult magazine. Things couldn't be more "normal" until he is sent to a obscure castle where he photographs a mysterious girl with a knack at disappearing, thus piquing his interest to return. And thus, Kohei sets out on a journey that takes him into the heart of the occult, on a mission to help the cutest vampire in existence find her long lost mother!
Karin is a vampire, but as fate would have it she is a freak among her own kind; for Karin doesn’t drink the blood of her counterparts – she is cursed to be a blood maker, forcing her to inject her extra blood into her victims. What’s worse is that if she doesn’t find an outlet for the blood in time, it explodes in a massive nose bleed of impressive volume. In Karin's twisted day-going state, she finds it nearly impossible to find safe victims; so, nose bleeds are a major problem. When transfer student and new classmate Usui Kenta proves to have exactly the kind of emotions her vampire nature most enjoys, she finds herself in comedic dire straights!
When she was young, Mashiro's life was saved by an oni. Turning 17, the ripe age to be eaten, she goes to marry him so that she can be eaten. However, he ends up doting on her excessively and has no intention to eat her?! The story of two unconsciously lovey-dovey newlyweds.
Tragedy struck Kotaro Higuchi as a child in the form of his mother's death in a car accident. But fate has a funny way of doing things, and years after the fact an angel-in-training named Misha decides to pay him a visit. Joined by his fellow elementary school students, and later by the nicest demon you'll ever meet, Kotaro and Misha will embark on a journey of laughs and love.
In order to bridge the gap between humans and youkai, The Ministry of Spirit Affairs was formed. Military man Kei Agemaki is assigned to the new unit and seems to be the ideal candidate. He’s charming, polite, and a complete gentleman, but there’s just one problem: he’s absolutely terrified of spirits! When he arrives at the new headquarters, Agemaki is partnered up with a cute, yet brash, youkai named Zakuro. Now the unlikely pair must work together to solve the region’s spirit-related problems to help improve relations between humans and youkai, and maybe help Agemaki overcome his crippling fear while they’re at it.