Inspector (3rd year), 12 years total experience (Most senior) Male Object-specialized ability Star, Police Patrol Car, Lockpick, Coffee, Opening, Pistol, Wrench 30 years old INTP Ability: Mechanic Described as a mechanic, but in reality, it is closer to being dexterous and handling objects in general. His primary role in the investigation is acquiring clues through interaction with inanimate objects. His ability has the widest range of application among all detectives, but the depth of each is somewhat shallow. He is an all-rounder who feels like a combination of several downgraded abilities compared to other detectives who specialize in one professional field. One of his advantages is his superior knowledge and utilization of firearms and information devices. [Weakness] Common to all-rounder abilities, the scope of use is very wide, but paradoxically, the direction of utilization is narrow and lacks professional depth.

Inspector (3rd year), 10 years total experience Male People-specialized Rabbit, Notebook, Microphone, Mask, Camera 29 years old ENFP Ability: Eloquence Literally, an investigation ability specialized in conversation and dialogue with NPCs (suspects, witnesses). Therefore, unlike Gakbyeol, he has zero interaction with the scene or objects. Due to his background in psychology, abilities to identify or manipulate the psychology and emotions of characters also frequently appear. His lines are written in a more empathetic and persuasive style than other detectives. [Weakness] There are several critical problems with this ability. First, if the target refuses to talk, the ability cannot be used at all. Especially if the target is too young or there is a significant power gap, conversation cannot continue without decisive clues, and the ability only draws conclusions based on the current state. Second, he is vulnerable to field investigations. Since his ability to investigate objects is low, it is very difficult for him to find crime scenes or hidden clues. Naturally, coordination with other detectives is not easy, and in the latter half of investigations, he is often seen working alone while others group up.

Sergeant (3rd year), 8 years total experience Male Physical-based Shark, Demolition Hammer, Handcuffs, Motorcycle 23 years old ESFP Ability: Action Leader Specifically, like a cliché hot-blooded detective, his physical abilities and mental strength are outstanding. He can excel in interactions involving the body, and beyond physical application, he can use threats or infer information such as physique based on physical knowledge. Thanks to this, he can briefly assess the state of a body when no forensic specialists are present. [Weakness] Rader's ability ultimately requires a clear target or object to perform physical actions. If the culprit is not revealed and he has to deal mostly with multiple civilian witnesses, or if he has to analyze a vague flow of events rather than individual units, his performance tends to decrease.

Sergeant (3rd year), 7 years total experience Male Knowledge-based Dinosaur, Encyclopedia, Cookie, Brainiac 23 years old ESTP Ability: Encyclopedia The exact principle has been revealed: it is not the concept of an electronic dictionary that brings up desired information like a real encyclopedia, but a type of hyperthymesia that pulls out information Gongryong has seen somewhere. Unlike other detectives, it can be used anytime, anywhere, without a restricted location or target. If there is information about the subject to be investigated, he acquires it; if not, only trivial knowledge appears.

Officer (5th year), 6 years total experience (Youngest) Male Non-existent-based Puppy, Eyes, Backpack, S.O.S Fanboy 21 years old INFP Ability: Sixth Sense Possesses superior five senses and spiritual powers. Among the other detectives whose abilities are closer to talents, he is the only one who possesses an ability closer to a true superpower. However, except for abilities utilizing the five senses, nothing happens under his own control. [Weakness] Since it relies on unclear senses and spiritual supernatural phenomena, it cannot be used as solid evidence. No matter how much he senses the causality of a case, the words spoken by Deokgae's senses have never been presented as a clue or rebuttal material. Furthermore, even if he discovers the conclusion of a case, the investigation, which is the intermediate process, must still be solved manually.

Inspector (7th year), Mystery Investigation Team Leader Female Existing-based Whale, Reliability Evaluation Notebook, Podium, Puzzle, Profiling 24 years old ISTJ Ability: Profiler Analyzes and reasons through crime scenes, analyzes differences in surrounding situations, and acquires numerous clues and material evidence from the scene where the incident occurred. [Weakness] Due to the nature of the ability to investigate spaces where incidents occurred or differences in minute gaps, the moments to use it are somewhat limited. It is often at the beginning of a chapter when first encountering a crime scene, at the end when reasoning about the culprit must be finalized, or at the very end when a contradiction is found and the case is overturned.