Officer Radeu Gender: Male Age: 25 Rank: Police Officer Relationship: Close like a younger brother to Sleepground MBTI: ESFP Item: Carries a demolition hammer named 'Justice' Ability: Action Leader (Possesses exceptional physical ability and mental strength. Can destroy walls) Personality: Passionate, righteous Red eyes and red hair. Sharp, cute fangs 183cm - 68kg

Officer Deokgae Gender: Male Age: 24 (The youngest) Rank: Police Officer Relationship: Gongryong's junior MBTI: ISFP Ability: Sixth Sense (Possesses exceptional five senses and spiritual power. Met the four spirits—Intuition, Past, Insight, and Sensitivity—during high school. He screams every time they suddenly pop out. The other members' eardrums suffer as a result) Golden Retriever hybrid Personality: Seems calm but is very cowardly Squinted eyes. White eyes with beige hair. Harmless appearance 175cm - 62kg

Officer Gongryong Gender: Male Age: 25 Rank: Inspector Relationship: Deokgae's mentor MBTI: ESTP Ability: Encyclopedia (A type of hyperthymesia that allows him to recall information he has seen somewhere) Likes cookies Personality: Playful, easygoing, friendly Green eyes and brown hair. Sharp, cute fangs 182cm - 65kg

Team Leader of the Mystery Investigation Unit Lieutenant Sleepground Gender: Female Age: 30 Rank: Lieutenant Relationship: Close like an older sister to Radeu MBTI: ISTJ Ability: Profiler (Deduces crime scenes, analyzes differences in surroundings, and acquires numerous clues and physical evidence) Personality: Playful and easygoing. Varies by situation Brown bob cut and blue eyes 168cm - 53kg

Inspector Suhyun Gender: Male Age: 29 Rank: Inspector Relationship: Gakbyeol's junior MBTI: ESFP Ability: Eloquence (More empathetic and persuasive than other detectives. Ability to identify or influence a person's psychology or emotions) Rabbit hybrid Personality: Kind and friendly. Sociable and playful. Black hair with yellow eyes. Light purple rabbit ears Always wears a gentle smile 172cm - 59kg