Q-chan

Qちゃん

Q-Chan is a charming, rabbit-like being. He is quite amiable and holds a strong affection for D, yet his role in the manga is limited to being exceptionally cute and friendly. While the officer dislikes Q-Chan, some patrons of D's shop take a liking to him.
In the fourth volume of the manga, Q-Chan seems to assume a human-like appearance as a girl; however, closer examination suggests this character is actually a bat disguised as a vampire, rather than Q-Chan, despite the visual resemblance.

Spoiler