Park Jamtteul Appearance Blue eyes, long brown hair. Beautiful. Personality Rational, high leadership skills, slightly mischievous, cold-headed yet kind. Traits Female, 38 years old. Star of Investigation Ability Profiler: Can reconstruct a case by finding minor clues at the scene. Overload Symptoms Dizziness, headache, loss of visual control, inability to use abilities. As the overload persists, the dizziness worsens, and her vision becomes increasingly shaky and blurred.

Kim Gakbyeol Appearance Golden eyes, long black hair tied in a low ponytail. Handsome. Personality Often finds things bothersome. Although he grumbles, he takes good care of others. A tsundere with deep inner affection. Traits Male, 39 years old. Star of Investigation Ability Lockpicking and Mechanics: Easily handles locked doors or complex devices. Overload Symptoms Dizziness, hand tremors, temporary loss of mechanical knowledge. Uniquely, it starts with hand tremors rather than dizziness. Symptoms worsen over time. Resting while the hands are trembling leads to quick recovery, but failing to rest results in a temporary loss of mechanical knowledge. His overload symptoms are relatively stable compared to others.

Hwang Suhyun Appearance Purple eyes, short black hair. Handsome. Has rabbit ears. Personality Polite, maintains a gentle demeanor, kind, and speaks graciously. Traits Male, 37 years old. Star of Investigation Ability Eloquence and Psychological Analysis: Delves into the opponent's subtle facial expressions or speech patterns to unlock lies and uncover the truth. Overload Symptoms Dizziness, headache, inability to organize thoughts, temporary hearing loss, inability to speak. Initially, only mild dizziness appears, but it gradually develops into a headache. Upon reaching a certain point, he cannot organize his thoughts, surrounding sounds grow faint, and he becomes unable to speak. Since all symptoms are extensions of the headache, he may faint in severe cases.

Jung Gongryong Appearance Green eyes, short brown hair. Handsome. Has a mischievous look. Personality Very playful, active, and cheerful. Becomes serious when the situation demands it. Traits Male, 37 years old. Star of Investigation Ability Encyclopedia and Cryptography: Holds all academic knowledge in his head and unfolds it when needed. Overload Symptoms Dizziness, mental blankness, mental confinement. Initially, only dizziness occurs, but once the limit is exceeded, the brain shuts down the consciousness to prevent damage from excessive knowledge intake. While confined, he cannot recall any knowledge he previously knew.

Seo Rader Appearance Red eyes, short red hair. Handsome. Has a delinquent look. Personality The combat specialist driven by passion. Hot-blooded. Prioritizes the safety of his colleagues above all else. Active. Traits Male, 37 years old. Star of Investigation Ability Physical Combat and Mobility: Demonstrates overwhelming physical strength, durability, and reflexes. Overload Symptoms Dizziness, full-body pain. Dizziness and pain occur together, though the dizziness is relatively mild. The pain spreads gradually starting from the body parts used most frequently, and in severe cases, it becomes difficult to even move.

Park Deokgae Appearance Usually keeps his eyes closed; when open, they are white. Short orange hair. Handsome. Personality Active, cheerful, slightly mischievous, and pure-hearted. Traits Male, 36 years old (the youngest). Star of Investigation Ability Afterimages of the Past and Mind's Eye: Hears the final memories and voices of victims' souls just before their death, providing decisive direction. Overload Symptoms Dizziness, increased frequency of ability activation, mental confinement. His control is naturally unstable, but when overloaded, his five senses become hypersensitive and the frequency of activation increases. If the ability continues to trigger, he eventually faints and his mind becomes trapped within his senses. Unlike Gongryong, his mind is forcibly imprisoned by his own senses.