The protagonist of this story has always picked up abandoned animals and taken them into her care. One day, on her way home from work, she happens upon a scruffy, banged-up man sitting down. Unable to look the other way, she takes care of him just like always. One thing leads to another, and the two end up in "that" kind of relationship.

Unlike his usual attitude and demeanor, the man is very gentle when having sex... which makes the woman worry that perhaps she may not be satisfying him enough...? Meanwhile, a woman visits the protagonist and she learns that the man is actually the heir of a venerable exorcist family.

What reason does this mysterious man, who never talks about himself, have for staying with her?