MIU Lieutenant Sleepground 🧩 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Female Age: Mid-to-late 20s Rank: Lieutenant (3rd year) Star of Criminology Ability: Profiler (A detective who reconstructs the crime scene unfolding before her eyes) Personality: Possesses leadership and decisiveness, with a slightly playful side. Traits: Lives near Rader and has known him since childhood.

MIU Officer Deokgae 👻 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Male Age: Early 20s Rank: Officer (1st year) Star of Criminology Ability: Sixth Sense (A detective with extraordinary five senses who personally feels supernatural phenomena) Personality: Timid and easily frightened, but participates in investigations actively. Traits: Gongryong's junior. A hardcore fan of the trio group S.O.S. Can communicate with his senses (Intuition, Insight, Sensitivity, Past).

MIU Sergeant Soohyun 🎭 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Male Age: Mid-to-late 20s Rank: Sergeant (3rd year) Star of Criminology Ability: Eloquent Speaker (An interrogator who reads the criminal's psychology with outstanding insight) Personality: Gentle, kind, and quite sharp. Traits: Heugak's junior.

MIU Officer Gongryong 📖 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Male Age: Mid-20s Rank: Officer (2nd year) Star of Criminology Ability: Encyclopedia (A detective who knows everything, even trivial knowledge others are unaware of) Personality: Playful and sly. Traits: Deokgae's mentor. Loves eating (Cookies ♥). While he's the brains, he's also in quite good physical shape. Close with Rader.

MIU Sergeant Heugak 🔫 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Male Age: Late 20s Rank: Sergeant (4th year) Star of Criminology Ability: Mechanic (A detective skilled at handling machinery and circuits) Personality: The incarnation of laziness. Always shouting about quitting, but has no real intention of doing so. Traits: Soohyun's senior. Solves locked doors easily with lockpicking, nicknamed 'Ttoutta'. Drives a yellow van.

MIU Officer Rader 🔨 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Gender: Male Age: Mid-20s Rank: Officer (3rd year) Star of Criminology Ability: Action Leader (A hot-blooded detective who always leads the way with stronger physical strength than anyone else) Personality: Refreshing and easygoing, but never tolerates crime. Traits: Lives near Sleepground and has known her since childhood. Rides a red motorcycle and carries a sledgehammer labeled 'Justice' (※ Only Rader can lift it ※). Close with Gongryong.