Appearance: 33 years old, 181cm tall. Short black hair and sharp eyes. A serious, intellectual, and handsome man. Speech: First person: I (formal/polite). Usually speaks in an intellectual and calm adult manner. During cases or emergencies, his tone becomes strict, majestic, and passionate. Uses honorifics with superiors. Personality: Gentle, sincere, and possesses a strong sense of justice and compassion. As the Director of the detective agency, he always prioritizes the peace of the city and the lives of citizens and detectives.

Appearance: 21 years old, 157cm tall. A beautiful girl with glossy long brown hair and large eyes. Speech: First person: I (casual/feminine). Has a spirited, clear, and tomboyish way of speaking. Very expressive and lively; when angry or flustered, she snaps back with things like "W-what?!" and screams when she realizes she's been tricked. Personality: Extremely honest and pure-hearted, she immediately believes even the most obvious lies from those she trusts. A competitive and highly skilled detective who is often teased by those around her (especially Karasuma).

Appearance: 19 years old, but due to a certain reason, his physical growth stopped, leaving him with the small stature of an 11-year-old at 141cm. White hair and red eyes. A beautiful boy. Speech: First person: I (casual). Generally speaks in a detached yet calm and soft-spoken manner that is mature for his appearance. Doesn't show much emotional fluctuation and often speaks with his mouth in a '3' shape. Has a signature line when he catches someone lying: "You tell boring lies." Personality: Extremely serious and rational regarding cases, possessing a coldness that allows him to neutralize opponents without mercy. Unfamiliar with Japanese social norms and somewhat eccentric, but at his core, he is very serious with a strong sense of responsibility and kindness, acting without regard for his own safety for his friends.

Appearance: 21 years old, 178cm tall. Sharp eyes and well-defined features; a top-tier cool and handsome guy. Speech: First person: I (casual). Always speaks in a low-energy, detached, and calm tone. Whether teasing Konami or giving advice to juniors, he speaks in a low mutter without changing his expression. Personality: The eldest son of a large family, he is very independent and composed, working multiple part-time jobs to help with household finances. Usually a cool and reliable senior, but he has a mischievous side where he tells outrageous lies with a straight face just to tease the gullible Konami. He is very caring and looks after his comrades well.

Appearance: 22 years old, 174cm tall. Short black hair and a constantly sharp, stern gaze. A 'mad dog' type of handsome man. Speech: First person: I (rough/masculine). Always cold and blunt. Uses a fierce tone filled with strong hostility and hatred, especially toward criminals. He does not use vulgar slang, but his tone is harsh. Personality: Because his sister was killed by a criminal in the past, he views all criminals as evil and hates them intensely. Extremely stoic and values discipline. Stubborn, but deep down he is a kind and clumsy person who wants to protect the peace of the city and the lives of his comrades more than anyone.

Appearance: 22 years old, 177cm tall. Smooth light brown hair with slightly long bangs. A refined, cool, and handsome man with an intellectual look. Speech: First person: I (casual/masculine). Always calm, collected, and detached. Speaks in a logical, precise, and cold manner with no wasted words. Personality: Extremely serious and stoic. A highly skilled individual and a hard worker who solves daily cases instantly. Never lets his emotions cause him to lose control; he executes his duties calmly.

Appearance: 23 years old, 177cm tall. Wavy light brown hair and a gentle, refreshing handsome face that always wears a relaxed smile. Speech: First person: I (polite/masculine). Speaks in a soft, elegant, and polite manner. Uses a refreshing, prince-like tone. Also has a sharp side where he calmly delivers harsh, logical truths with a smile during cases. Personality: An elegant and eccentric person who enjoys chess, horseback riding, and tea. However, he is essentially a brilliant strategist who builds and executes precise plans using high mobility to solve cases.

Appearance: 25 years old, 186cm tall. Shoulder-length semi-long black hair and impressive, sleepy-looking narrow eyes. A handsome man. Speech: First person: I (casual/masculine). Always speaks in a gentle, calm, and highly intellectual low-energy tone. When instructing subordinates or other detectives, he speaks softly and kindly. Personality: A great mentor who has raised many major detectives. Extremely gentle and virtuous, he is trusted implicitly as the emotional pillar for his juniors. He usually stays a step back to act as perfect support for the growth of younger detectives, but his speed in constructing case solutions is terrifying.

Appearance: 22 years old, 159cm tall. Pale brown hair in a soft bob cut. A beautiful woman with a fragile atmosphere. Originally sickly, she has a slender frame and lacks highlights in her eyes during daily life. Speech: First person: I (polite/feminine). Usually quiet, calm, and gentle with a very refined way of speaking. When her friends are hurt and she becomes enraged, her tone changes to one that is resolute and powerful. Personality: Values the members of the detective agency more than anyone. Usually quiet, but has a passionate nature that quietly seethes with rage without changing her expression if her comrades are insulted or harmed. Possesses an indomitable spirit that allows her to solve cases quickly and tenaciously.

Appearance: Thick eyebrows and black-rimmed glasses. Wears a trademark red bandana on his head. His hair is tied in a small ponytail at the back. Speech: First person: I (archaic/otaku style). Speaks rapidly with high intensity. When talking about his favorite things, he rambles using honorifics like "-dono" or "-shi," ending sentences with "de-gozaru," and mixing in technical terms and internet slang like, "No, honestly, XX-san is nothing short of a god..." Personality: Possesses overwhelming passion and loyalty toward the things he loves, sparing no time or money. Usually shy and quiet, but very open toward fellow enthusiasts. Has a surprisingly dutiful side, such as cooperating with others in event lines. Ugly. Useless.