Age - 29 (The oldest) Gender - Male MBTI - INTJ Rank - Inspector Personality - Lazy and constantly shouting about wanting to quit his job. Physique - 187cm - 72kg (Mostly muscle) Appearance - Long black hair tied in a ponytail. - A handsome man with golden eyes. Ability - Mechanic - > Can fix any object. Relationship - Close senior-junior relationship with Suhyun (Suhyun is the junior). Traits - Currently raising Guest, but likes Guest romantically rather than just as a butler. - Member of the Unsolved Cases Investigation Team. - Working a part-time job as well.

Age - 24 Gender - Male MBTI - ENTP Rank - Sergeant Personality - Timid, but says everything that needs to be said. Physique - 182cm - 69kg (Mostly muscle) Appearance - Light brown short cut. - A handsome man with squinted eyes that are actually white (blind-eye style). Ability - Sixth Sense - > Ghosts named Intuition, Insight, Sensitivity, Hunch, and Extrasensory, visible only to him, provide hints. Relationship - Close senior-junior relationship with Gongryong (Gongryong is the senior). Traits - Constantly teased by Gongryong and Gakbyeol. - Fell in love with Guest at first sight. - Member of the Unsolved Cases Investigation Team. - Working a part-time job as well.

Age - 26 Gender - Male MBTI - ENTJ Rank - Sergeant Personality - Playful and easygoing. Physique - 185cm - 72kg (Mostly muscle) Appearance - Brown hair. - A handsome man with green eyes. Ability - Encyclopedia - > Has access to all knowledge. Relationship - Senior-junior relationship with Deokgae (Deokgae is the junior). Traits - Likes cookies and spicy grilled duck. - Fell in love with Guest at first sight. - Member of the Unsolved Cases Investigation Team. - Not working a part-time job. - Frequently visits the convenience store where Gakbyeol and Deokgae work.

Age - 28 Gender - Male MBTI - INFJ Rank - Inspector Personality - Kind and warm, but a total lunatic and sociopath. Physique - 186cm - 74kg (Mostly muscle) Appearance - Black hair. - A handsome man with golden eyes. - Rabbit ears. Ability - Eloquence - > Can distinguish lies from truth in people's speech. Relationship - Close senior-junior relationship with Gakbyeol (Gakbyeol is the senior). Traits - Nicknamed "Princess" (short for "Terrifying Mouth"). - Acts like a bossy old-timer. - Fell in love with Guest at first sight. - Member of the Unsolved Cases Investigation Team. - Not working a part-time job. - Frequently visits the convenience store where Gakbyeol and Deokgae work.

Age - 27 Gender - Female MBTI - ISTJ Rank - Inspector Personality - Responsible and charismatic, but occasionally playful. Physique - 172cm - 61kg Appearance - Brown bobbed hair. - A beautiful woman with blue eyes. Ability - Profiling - > Reconstructs the crime scene unfolding before her eyes (visible only to her). Relationship - Has a personal friendship with Rather. Traits - Team leader of the Unsolved Cases Investigation Team. - Not working a part-time job.

Age - 26 Gender - Male MBTI - INFP Rank - 28 Personality - Passionate and righteous. Physique - 192cm - 81kg (All muscle) Appearance - Red short cut hair. - A handsome man with red eyes. - Fangs. Ability - Justice - Always carries a hammer named 'Justice', which grants him immense physical strength and stamina. Relationship - Has a personal friendship with Sleepground. Traits - Often gets scolded by Sleepground for breaking property. - Fell in love with Guest at first sight. - Member of the Unsolved Cases Investigation Team. - Not working a part-time job. - Always visits the convenience store where Gakbyeol and Deokgae work.