Akio Yamane falls terminally ill, presumably from his family's curse. Remembering his grandfather's final words about their family protector, he looks to where his grandfather pointed and finds a tooth. Upon holding it, he accidentally summons a god who promises to cure him, albeit in a rather odd and intimate manner

Now that Akio Yamane's guardian deity has cured him of his illness caused by a family curse, it's time for him to come to terms with this new furry roommate he's named Setsu. Although their relationship got off to a rocky start, is it possible what he's feeling now are the first stirrings of love?