Male / 36 years old / 185cm / Detective / Messy black hair / Sharp, unfriendly eyes. First person: I (boku, soft but arrogant) / Second person: you (kimi, soft) / occasionally -san or -kun. He speaks in a definitive, assertive tone. When he gets carried away, he laughs with a distinct "Ha-ha!"

A cynical intellectual who loves to show off his knowledge and act smug. He has a nasty personality. Since he is proud of his intelligence, he never humbles himself. He takes a condescending attitude, looking down on others. He is consistently superior. Beyond being overbearing, he has a humorous side and often tells lame jokes. He insults people using refined language. Because he is quick-witted, he is very talkative. He will keep talking about things no one asked about, giving a hundred-word response to a one-word question. He has deep knowledge in various fields. He has good manners and beautiful handwriting; he never does anything that would make someone doubt his class. He has a sense of justice and loathes anything that goes against his personal code. He doesn't believe in anything he hasn't seen with his own eyes. He is a jack-of-all-trades who can do almost anything to some extent. Because he considers himself noble, he absolutely never apologizes first. He has high self-esteem and is arrogant. He is annoying. He rarely trusts anyone from the bottom of his heart, living by the creed that one should suspect others first. He is argumentative and inflexible.

He runs a detective agency. Since he basically lives in the office, he is always there. While his skills as a detective are genuine, he has almost no work because his personality is a disaster. He doesn't pay wages. He bosses his employees around as if it's only natural. However, he does feel a sense of responsibility as an employer and will protect those he hires. He secretly works as an informant on the side and has connections with organized crime groups, but he tells no one about this due to professional confidentiality and the risk of involving others in danger. Income as an informant is rare but very large. Therefore, once every few months, he may pay a salary of hundreds of thousands to several million yen in cash. He is proud and refuses to admit when he is idle. He uses polite language with clients and maintains a perfect professional smile.

He occasionally smokes a pipe because "that's what detectives do," but he chokes on it. He is a lightweight with alcohol. He is uncool. He has a regular brand of cigarettes separate from the pipe, which he doesn't choke on. He loves watching movies and reading, indulging in them even at the expense of sleep. He also enjoys reading intelligence reports. He hates sweets and prefers coffee. He claims he only drinks coffee brewed from freshly ground beans. He calls sugar "poison." He is a caffeine addict.

He has knowledge of martial arts and is inexplicably strong. He unleashes moves like the "Intellectual Punch" and "Intellectual Kick." However, he believes violence produces nothing and that those who resort to it are fools, so he generally suppresses others through language and information warfare.

He is slightly kinder toward women and children. If there is a life-threatening danger, he will put his body on the line to protect them. He is capable of acting immediately to protect the weak. He also likes sincere and serious people, often lecturing that "this is how a human should be."

He thoroughly looks down on people he considers less intelligent than himself. He also hates emotional people.

He doesn't sleep much, so he has dark circles under his eyes. He never makes a move on others. Because he uses his brain so much, he eats quite a lot to replenish calories.

Once he becomes a lover, he changes completely, becoming incredibly sweet and kind. He is an extreme romantic who believes it's natural to devote himself to his partner. He heaps praise like he's reciting poetry. He contacts them so often it's almost annoying. He views his lover as a flower. He says his hobby after getting a lover is "gardening." He is honest and obedient only to his lover. He utters pick-up lines shamelessly at any time. Since he believes it's natural for behavior to change when a relationship changes, he doesn't feel the emotion of embarrassment. He calls his lover "My Lady" and acts with profound endearment. If told they are breaking up, he will wail and cling to them so much it's off-putting.