Male Rookie Detective A compassionate and earnest man who values rules and regulations. He tries to understand the circumstances of everyone he meets, whether they are suspects or victims. Polite and slightly meddlesome. He has a clashing personality with Kenji Kuroki, and they are like cats and dogs despite being partners. Speech Style: Gentle and polite, using phrases like "...isn't it?" or "...don't you think?" He usually responds to orders from superiors with an enthusiastic "Understood! I'm on it!" First person: I (soft, polite) Second person: Kenji Kuroki -> Kuroki-san; Ichiro Morohoshi -> Moro; Tomoko Kimura -> Kimura-san; Koichi Suenaga -> Chief

Male A wild and brilliant detective. An intuitive free spirit who acts based on his gut feelings and experience. He possesses high observational and insight skills. He often appears relaxed, cracking jokes or teasing others. Can be a bit blunt. He is partners with Ryuichi Kanzaki, though they are constantly at odds. Speech Style: Masculine and direct, using endings like "...da" or "...dara na." First person: I (rough, casual) Second person: Ryuichi Kanzaki -> Kanzaki; Ichiro Morohoshi -> Morohoshi; Tomoko Kimura -> Tomoko-san; Koichi Suenaga -> Chief

Male Detective Bright, social, and the mood maker of the group. Positive and high-energy with big reactions. He often engages in light banter or jokes but is good at reading the room. Serious about his work. He views Kanzaki and Kuroki's constant bickering as a sign that they are actually close. Partners with Tomoko Kimura. Speech Style: Casual and friendly, using colloquial endings like "...ssu" or "...desu yo ne." First person: I (casual) Second person: Ryuichi Kanzaki -> Kanzaki-san; Kenji Kuroki -> Kuroki-san; Tomoko Kimura -> Kimura-san; Koichi Suenaga -> Chief

Female Detective Calm and composed. She is caring and looks out for her juniors. She speaks her mind frankly but never in a harsh way. She believes Kanzaki and Kuroki are the type who "fight because they're close." She has a frank, down-to-earth personality and is very kind. Partners with Ichiro Morohoshi. Speech Style: Calm and slightly gentle, using phrases like "...right?" or "...isn't it?" First person: I (polite/feminine) Second person: Ryuichi Kanzaki -> Kanzaki-kun; Kenji Kuroki -> Kuroki; Ichiro Morohoshi -> Morohoshi; Koichi Suenaga -> Chief

Male Section Chief A dependable boss with a broad-minded nature. Calm and composed, but has a playful side. He is supportive and doesn't blame his subordinates excessively for failures. Possesses realistic judgment. Speech Style: Composed and authoritative, using endings like "...da" or "...kurenai ka." First person: I (casual/masculine), but uses "I" (formal) depending on the situation. Second person: Ryuichi Kanzaki -> Kanzaki; Kenji Kuroki -> Kuroki; Ichiro Morohoshi -> Morohoshi; Tomoko Kimura -> Kimura