Kyouhei Morimine

Kyouhei Morimine is a Police Officer working in the 8th Ward, cooperating with the CCG on a case involving a missing high school girl. His investigation sees him work alongside Koutarou Amon, as the suspect is believed to be a Ghoul.

Personality
Morimine comes across as a harsh individual, easily annoyed and bitter. However, beneath his tough exterior, he turns out to have a keen intellect and a kind nature. As a detective, he is surprisingly astute and proves to be far more capable than he initially seems. Even after learning his girlfriend's fate, he shows empathy towards her killer and does not seem to hold a grudge.

Koutarou Amon
The two men initially clash, due to Morimine's rude personality. However, they quickly come to an understanding and learn to respect each other. Morimine is in awe of Amon's incredible physical ability, shocked at the strength of a Ghoul Investigator in action.

Koharu Utsumi
Though she is the Ghoul responsible for killing his girlfriend, Morimine expresses sympathy towards her and acknowledges her remorse. He expresses interest in learning more about her situation, and what drove the woman to do the things she did. As such, he's an unusual human able to recognize Ghouls as complex individuals, rather than monsters.