A clumsy vampire, Sono-san, appears before Yamamoto-kun, a male college student who just wants to live an ordinary life! Sono-san was chased out of the vampire village because he couldn't learn any blood-sucking skills, but he ends up moving into Yamamoto-kun's house, who can't help but leave people in trouble. This is the start of a romantic comedy about a half-vampire living in a vampire house!