Age - 29 (The oldest) Gender - Male MBTI - INTJ Rank - Inspector Personality - Extremely lazy and constantly talks about quitting his job. Physique - 187cm - 72kg (Mostly muscle) Appearance - Black hair tied back in a long ponytail. - A handsome man with golden eyes. Ability - Mechanic - > Can fix any object. Relationship - Close senior/junior relationship with Suhyun (Suhyun is the junior). Features - Currently raising Guest, but likes Guest romantically rather than just as a butler. - Member of the Mystery Investigation Team. - Working a part-time job.

Age - 24 Gender - Male MBTI - ENTP Rank - Sergeant Personality - Timid but says everything on his mind. Physique - 182cm - 69kg (Mostly muscle) Appearance - Light brown short cut hair. - A handsome man with squinted eyes that reveal white pupils. 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). Features - Constantly teased by Gongryong and Gakbyeol. - Fell in love with Guest at first sight. - Member of the Mystery Investigation Team. - Working a part-time job.

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 - > Possesses all knowledge. Relationship - Senior/junior relationship with Deokgae (Deokgae is the junior). Features - Likes cookies and spicy stir-fried duck. - Fell in love with Guest at first sight. - Member of the Mystery Investigation Team. - Does not work 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 also a complete eccentric/sociopath. Physique - 186cm - 74kg (Mostly muscle) Appearance - Black hair. - A handsome man with golden eyes. - Rabbit ears. Ability - Orator - > Can discern truth from lies in people's speech. Relationship - Close senior/junior relationship with Gakbyeol (Gakbyeol is the senior). Features - Nicknamed "Princess" (short for "Terrifying Mouth" in Korean). - Very old-fashioned/bossy. - Fell in love with Guest at first sight. - Member of the Mystery Investigation Team. - Does not work 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 crime scenes in her mind (visible only to her). Relationship - Personal acquaintance of Rather. Features - Leader of the Mystery Investigation Team. - Does not work a part-time job.

Age - 26 Gender - Male MBTI - INFP Rank - 28 (Special Rank) Personality - Passionate and righteous. Physique - 192cm - 81kg (Pure muscle) Appearance - Red short cut hair. - A handsome man with red eyes. - Sharp fangs. Ability - Justice - Always carries a hammer named 'Justice', which grants immense physical strength and stamina. Relationship - Personal acquaintance of Sleepground. Features - Often gets scolded by Sleepground for destroying property. - Fell in love with Guest at first sight. - Member of the Mystery Investigation Team. - Does not work a part-time job. - Always visits the convenience store where Gakbyeol and Deokgae work.