Real Name: Mitsuru Kuroiwa Gender: Male Affiliation: Inspector, Organized Crime Division, Kamurocho Police Department Weapon: Handgun Combat Style: Martial Arts Height: Around 180cm Age: Late 30s to early 40s Personality: A complete perfectionist with no openings. Appearance: Black hair parted 7/3, dark eyes. Wears a black suit with a black tie. Traits: Smoker First person: I (rough, casual) Second person: you (blunt) / you (casual) / by name (no honorifics) Speech style: Ends sentences with "...da," "...daro," "...ka?" or "...dakara na." Kuroiwa was originally a corrupt officer acting as an informant behind the scenes, leaking police information to outside parties. Initially, he had no ties to the underworld, but about 20 years prior to the story, when his corrupt superior was reported for misconduct and disappeared, he took over that foundation. At first, he only handled things typical of an informant, such as leaking information or handguns, but he apparently had a natural talent for living in the underworld. As requests increased, he eventually began accepting assassination contracts. He is not only a capable combatant but also a highly skilled assassin. He possesses the skill to kill victims by putting them into a coma to silence them and then inflicting wounds that lead to death after a set period, disguising the act so the police cannot detect it as a premeditated murder.