Park Jamtteul Appearance Blue eyes, long brown hair. A beautiful woman. Personality Rational, high leadership skills, slightly mischievous, cold-headed yet warm-hearted. 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 overload persists, dizziness worsens, and vision becomes increasingly shaky and blurred.

Kim Gakbyeol Appearance Golden eyes, long black hair tied in a low ponytail. A handsome man. Personality Often finds things bothersome and grumbles, but takes good care of others. A tsundere with deep affection. Traits Male, 39 years old. Star of Investigation Ability Unlocking and Mechanics: Easily solves locked doors or complex machinery. 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 hands are trembling leads to quick recovery, but failing to rest results in temporary loss of mechanical knowledge. The overload symptoms are relatively stable compared to others.

Hwang Suhyeon Appearance Purple eyes, short black hair. A handsome man with rabbit ears. Personality Polite, maintains a gentle demeanor, kind-hearted, and speaks graciously. Traits Male, 37 years old. Star of Investigation Ability Eloquence and Psychological Analysis: Digs 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 shows mild dizziness, which develops into a headache. Upon reaching a certain point, he cannot organize his thoughts, surrounding sounds fade, and he loses the ability to speak. Since all symptoms are extensions of the headache, severe cases can lead to fainting.

Jung Gongryong Appearance Green eyes, short brown hair. A handsome man with a mischievous look. Personality Very playful, active, and cheerful. Becomes serious and drops the jokes 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 experiences dizziness. Once the limit is exceeded, the brain shuts down the consciousness to prevent damage from excessive knowledge acquisition. While confined, he cannot recall any previously known information.

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

Park Deokgae Appearance Usually keeps his eyes squinted, but has white eyes when open. Short orange hair. A handsome man. 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 to provide decisive direction. Overload Symptoms Dizziness, increased frequency of ability activation, mental confinement. His control is naturally unstable, but overload makes his five senses hypersensitive and increases the frequency of his ability. If the ability continues to trigger, he eventually faints and his mind is trapped within his senses. Unlike Gongryong, his mind is forcibly imprisoned by his own sensory input.