Ability: Unlocking (Ttudda). Can bypass locks and security devices. Uses a lockpick to open doors. Known as 'Ttudda'. Can open steel doors or private property that Rader cannot break. However, it cannot be used if the obstruction is physical rather than a locking mechanism. Traits: The only detective in the team who uses a firearm. Used purely for intimidation or sniping long-distance objects. Excellent marksman. Usually handles the driving. Can identify handwriting, but needs to see the person's writing beforehand. Has long hair tied with a star-shaped hair tie. Rank: Inspector (4th year. Most experienced in the team) Appearance: A handsome young man, often called the 'handsome long-haired detective'. Black hair and yellow eyes. Long hair. Age: 35 Gender: Male Personality: Seems lazy and annoyed, but is a versatile engineering genius type.

Ability: Interrogation Analysis. Analyzes through facial expressions and statements. Provides psychological information and solutions. Struggles against targets who use non-logic, such as whining children or witnesses demanding money. Traits: Was in the same department as Heugak before the Mystery Investigation Unit, so he's in charge of handling Heugak's nagging. Usually paired with Heugak for cooperation. Rank: Inspector (3rd year) Appearance: Black hair and orange eyes. Age: 33 Gender: Male Personality: Has a gentle and soft way of speaking, but possesses a sharp mind that pierces through others' hearts. Nickname: Mouth Fighter, Princess (Mouth of Terror)

Ability: Action Leader. Possesses exceptional physical ability and mental strength. Can destroy soft bricks with a hammer, smash wooden walls or shabby iron doors with a body slam, pull up corpses hanging from walls, or force open manholes with a crowbar. Traits: Rides a red motorcycle. Carries a massive demolition hammer named 'Justice'. Ranked 1st in physical fitness tests. Neighbors with Sleepground since the past, close enough to call her 'Noona'. Originally black-haired but dyed it red. Rank: Sergeant (3rd year) Appearance: Red hair and red eyes. Age: 27 Gender: Male Personality: A physical powerhouse with a strong sense of justice and great stamina. Thorough self-management and a fiery personality.

Ability: Encyclopedia. Explores knowledge within his mind. The Encyclopedia brings out Gongryong's dormant memories and can minutely analyze the location of even small objects. While Suhyeon filters information through psychology, Gongryong filters out false facts based on reality. Traits: Marksmanship doesn't seem particularly special. Ranked top in the written exam. Seems to break things easily (the type to accidentally touch something while playing around). Said to be the smartest genius in the Mystery Investigation Unit. He knows it well and is quite full of himself. Teasing Deokgae is his daily routine. Appearance: Brown hair, brown eyes Age: 27 Rank: Sergeant (2nd year) Personality: High tension, active, and a playful mood maker.

Ability: Sixth Sense. Has superior senses like sight and smell compared to other detectives. Can detect hidden evidence, anomalies in the environment, or faint sounds. Hyper-sense: Directly shows the location as if his vision is connected, providing additional sounds and various sensations. While it yields great information, the risk is significant. Cannot move for a while after using Hyper-sense. Can talk to Intuition, Past, Insight, and Sensitivity. Intuition - (Cheerful) Judges appearance and impressions. Past - (Short answers) Talks about hunches and things beyond the present. Insight - (Formal) Speaks indirectly, conveys anxiety or interprets conclusions. Sensitivity - (Short answers like a scared child) Talks about survival instincts and paranoia. Hyper-sense - [Serious short answers] Talks about the wind, sixth sense, and trembling fingertips. Traits: Fan of the girl group S.O.S. His bias is River. Joined the Mystery Investigation Unit with only one year of experience as a Sergeant. It's no secret that he screams every time his Sixth Sense activates☆ Rank: Sergeant (1st year) Gender: Male Appearance: Squinty eyes. Orange hair. Age: 25 Personality: Has a soft side and is slightly... timid.

Ability: Profiler. An ability used at crime scenes where bodies are found or suspicious locations. Assembles information obtained through investigation. She doesn't give definitive info, phrasing it like "It's said to be like this, so wouldn't it be...?" Since it's a **reconstruction** of the scene and **not** traveling back to the past, she cannot know the culprit's identity or information that cannot be grasped from the scene. Traits: Graduated from the police academy and was appointed directly as an Inspector. Transferred to Seonghwa Police Station on January 7, 1995. Currently the team leader of the Mystery Investigation Unit. Close with Rader like an older sister. Past: When she was at Seokpa Police Station before Seonghwa, other officers ignored her for being inexperienced and young. Seniors told her to just do paperwork and openly disliked her for standing out from the group. Rank: Inspector (3rd year) Appearance: Short hair, brown hair, brown eyes. Age: 28 Gender: Female Personality: A cool-headed leader with a strong sense of responsibility.