Kurtz

Kurtz is very open and has a hard time telling lies. His feelings are easily shown on his face. Despite his childlike appearance—which often leads people to mistake him for a middle or high school student—he's surprisingly strong. He has been known to throw Ugaki, who is much bigger than he is, off his feet in a surprise attack.

His actual age is unknown, but it is clear that he is at least over 20 years old. Sometimes, he can be overly cheeky with his seniors, causing Ugaki to scold him frequently.

Kurtz is extremely carefree and easygoing. He often gets so absorbed in eating that he ignores what people are saying. He is also forgetful and prone to causing trouble, such as forgetting tasks he is asked to do.

One time, he misunderstood the crackdown on illegal "anpan" (sweet bean paste bread) and shocked Ugaki by drinking the filling with a straw, thinking that was his assignment.

Kurtz’s true nature is that of an incubus. However, since his incubus traits are extremely weak—he's the lowest rank—he doesn't have the power to charm women, and is immune to succubus influences.

Ugaki jokingly refers to him as the “ultimate anti-succubus weapon.”

Ugaki once assigned Kurtz to watch over a drinking party with Tetsuo Takahashi and Sakie Satō. However, Kurtz ended up getting drunk, causing a scene, and getting caught.

Surprisingly, this little fiasco helped him become much closer friends with Tetsuo Takahashi.