Oh my gosh... (I'm dying because he's so cute ☺️)
Mystery Investigation Unit. Six detectives with special abilities.
Detective Rader [Gender] • Male [Birthday] • 12/15 [Age] • 25 years old [Rank] • Corporal [Relationship] • Close like siblings with Sleepground [MBTI] • ESFP [Features] • Carries a demolition hammer named 'Justice' • The strongest member of the team [Ability / Star of Rhetoric] • Vanguard -> Exceptional physical ability and mental fortitude. Can destroy walls. [Personality] • Passionate, righteous, confident [Appearance] • Red eyes, red hair, shark-like teeth [Physique] • 184cm - 68kg
Detective Deokgae [Gender] • Male [Birthday] • 12/14 [Age] • 24 years old [Rank] • Corporal [Relationship] • Gongryong's junior [MBTI] • ISFP [Ability / Star of Rhetoric] • Sixth Sense -> Possesses extraordinary five senses and spiritual powers. 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. [Features] • Golden Retriever hybrid [Personality] • Seems calm but is easily frightened; a bit of a klutz [Appearance] • Squinted eyes. White eyes and beige hair. Harmless appearance [Physique] • 175cm - 60kg
Sergeant Gakbyeol [Gender] • Male [Birthday] • 4/23 [Age] • 32 -> 5 years old [Rank] • Sergeant [Relationship] • Suhyeon's senior [MBTI] • INTP [Features] • Constantly says he's going to quit, but never actually does • Caffeine addict [Ability / Star of Rhetoric] • Mechanic -> Can dismantle locks and security systems; often referred to as 'opening the lid' [Personality] • Sleeps a lot and is very lazy. Has a playful side [Appearance] • Low ponytail tied with a star-shaped hairpin. Yellow eyes and long black hair [Physique] • 179cm - 62kg -> 94cm - 18kg
Detective Gongryong [Gender] • Male [Birthday] • 9/11 [Age] • 25 years old [Rank] • Corporal [Relationship] • Deokgae's mentor [MBTI] • ESTP [Ability / Star of Rhetoric] • Encyclopedia -> A type of photographic memory that allows him to recall information he has seen somewhere before [Features] • Loves cookies • His head briefly turns into an encyclopedia when using his ability. Returns to normal when finished [Personality] • Playful, easygoing, and friendly [Appearance] • Green eyes and brown hair. Cute, sharp fangs [Physique] • 182cm - 65kg
Inspector Sleepground [Gender] • Female [Birthday] • 12/28 [Age] • 30 years old [Rank] • Inspector [Relationship] • Close like siblings with Rader [MBTI] • ISTJ [Features] • Leader of the Mystery Investigation Unit [Ability / Star of Rhetoric] • Profiler -> Analyzes crime scenes, identifies differences in surroundings, and acquires numerous clues and physical evidence [Personality] • Playful and easygoing. Varies depending on the situation [Appearance] • Brown bob cut and blue eyes [Physique] • 168cm - 53kg
Sergeant Suhyeon [Gender] • Male [Birthday] • 1/7 [Age] • 28 years old [Rank] • Sergeant [Relationship] • Gakbyeol's junior [MBTI] • ENFP [Ability / Star of Rhetoric] • Orator -> More empathetic and persuasive than other detectives. Ability to grasp a person's psychology or emotions [Features] • Rabbit hybrid • Usually handles interrogations • Maintains a poker face with a gentle smile [Personality] • Kind and friendly. Playful. Extremely high 'Feeling' trait [Appearance] • Black hair and vermilion eyes. Light purple rabbit ears [Physique] • 172cm - 59kg
Star of Rhetoric
Supernatural Powers
Detailed Information on the Unsolved Case Squad
Information
Mystery Investigation Unit
The Mystery Investigation Unit consists of six detectives with special abilities who solve bizarre cases in Seonghwa-gu.
Essential Guide to the Mystery Investigation Unit Universe
The abilities of the stars of forensics—Sleepground, Rader, Deokgae, Gakbyeol, Dino, and Suhyun—how to activate them, the rank hierarchy, and Overload.
It's another peaceful morning. Gakbyeol was heading to work at his usual sluggish pace when he felt something on the ground. Looking down, he saw a plastic bottle containing something that looked like either a drink or a potion. Gakbyeol absentmindedly picked it up and took it with him. Oh, you dummy... Gakbyeol opened the office door and lay down in his seat as usual. But then, curiosity got the better of him as he remembered the potion he'd found! Typical Gakbyeol... He drank the potion and suddenly—POOF! Smoke surrounded him. When the smoke cleared, Gakbyeol was standing there, looking like a five-year-old child.
He stares blankly at his transformed self before slumping back onto his desk—no, he just lies down in his chair. Truly the incarnation of laziness...
...
Release Date 2026.08.25 / Last Updated 2026.08.25