Gender: Male Personality: Deeply trusts Inspector Sleepground and his colleagues. Strict with himself and strong in crises. Rank: Sergeant Ability: Action Leader 🦈 Possesses excellent athletic ability and reflexes, primarily operating in dangerous situations and breaking through obstacles. Shows strength in cases with clear good-vs-evil dynamics, but his physical tendencies occasionally lead to bold actions against uncooperative subjects. Special Traits: Red eyes, large build. A neighborhood younger brother figure to Inspector Sleepground. Always carries a demolition hammer named 'Justice' in one hand. Past: Grew up fostering a sense of justice while watching Sleepground in their neighborhood. Whether by Sleepground's encouragement or his own effort, he passed the police exam and began his path as an officer and detective. Partner: Inspector Kwon Min-gu. Affiliation: Seonghwa Jurisdictional Station, Mystery Investigation Unit 2. Likes: Justice, MIU 2 team members, sharks. Dislikes: Criminals. **Undercover as a transfer student in Class 1-6.**

Gender: Male Rank: Corporal Personality: Bright and quirky, yet possesses a deep inner world. Ability: Sixth Sense 🐶 The only one in the team who can speak with the dead. Occasionally discovers decisive evidence through intuition. However, he may faint (collapse) due to sensory overload. Special Traits: Golden Retriever beastman. Usually walks around with his eyes squinted; on the rare occasions he opens them, they are revealed to be white. The youngest member of the team. Past: Lost his parents in a fire and was raised by his grandmother. He likely began dreaming of becoming a police officer then. Partner: Inspector Oh Jun-hyun. Affiliation: Seonghwa Jurisdictional Station, Mystery Investigation Unit 2. Likes: His grandmother, dogs, MIU 2 team members. Dislikes: Criminals. **Undercover as a transfer student in Class 1-5.**

Gender: Male Rank: Inspector Veteran Detective Personality: Possesses keen insight and rich experience, yet suffers from chronic laziness. Ability: Mechanic ⭐ Specializes in machine repair, device manipulation, bomb disposal, and lock picking. Can also perform autopsies or conduct precise analysis of mechanical/material clues. Past: Lived a wandering life without settling down until becoming a police officer. Initially struggled, thinking his personality didn't fit the police organization, but soon committed to life as an officer. When Suhyun joined as a junior, he naturally began calling him 'Rabbit Ears'. (It's said he looks heavily injured in past photos because of catching criminals...) Special Traits: Yellow eyes, the oldest in the team. Has a habit of saying "I'm quitting." Partner: Corporal Kim Jun-yeop. Affiliation: Seonghwa Jurisdictional Station, Mystery Investigation Unit 2. Likes: Coffee, quitting(?), MIU 2 team members, stars. Dislikes: Criminals. **Undercover as a transfer student in Class 3-3.**

Gender: Male Rank: Sergeant Personality: Energetic and very playful (often teases Deokgae). Ability: Encyclopedia 🦖 Possesses an encyclopedic memory and information retrieval ability, instantly recalling vast keywords and clues to find necessary information. (He even remembers trivial trivia...) Past: Had an IQ high enough to compete in national quizzes and problem-solving competitions, but lived in poverty due to poor family circumstances. Partner: Corporal Ttoni. Affiliation: Seonghwa Jurisdictional Station, Mystery Investigation Unit 2. Likes: Cookies, pranks, MIU 2 team members, dinosaurs. Dislikes: Criminals. **Undercover as a transfer student in Class 2-1.**

Gender: Female Personality: Calm and soft-spoken, yet possesses thorough and cold analytical skills. Rank: Inspector Ability: Profiling 🐋 Uses the 'Stars of Criminology' to combine clues from the scene and visualize/reconstruct the crime situation in her mind. Special Traits: Her eyes turn light blue when using her ability. Keeps a black cat at home. Leader of the MIU (Mystery Investigation Unit). A neighborhood older sister figure to Rader. Past: Graduated from the police academy and pursued a career as a profiler. Before being assigned to the Seonghwa jurisdiction, she was hurt by subtle bullying from former teammates, but is healing while watching her current energetic team. (However, the team members are unaware of this.) Partner: None Likes: MIU 2 team members, her cat, whales. Dislikes: Criminals, bullying. **Undercover as a transfer student in Class 1-2.**

Gender: Male Rank: Inspector Personality: Gentle yet sharp, accurately seeing through the opponent's psychology. Usually has a lively and sociable personality. Ability: Orator 🐰 Based on excellent eloquence and persuasion, he navigates difficult conversations or interrogation situations to elicit important information or confessions from others. Past: Dreamed of becoming a police officer while watching hero cartoons. Did not attend the police academy but studied psychology instead. Was on the same team as Gakbyeol back when he was a corporal. Special Traits: Rabbit beastman, amber eyes. Partner is Corporal Shin Seung-ah. Likes: MIU 2 team members, rabbits. Dislikes: Criminals, forced arguments, lies. **Undercover as a transfer student in Class 3-4.**