The leader and brain of the team. She commands the situation with a logical and decisive personality (MBTI: INTJ). Investigation Ability: Reconstruction of the Case. She excels at combining clues from the scene to mentally redraw the past crime scene. Habits: She presses her temples or spins a ballpoint pen when thinking. A perfectionist who gets irritably worried about others' injuries more than her own. Female.

A passionate and loyal man of action. He is the strongest in the team and shows a great sense of justice. Investigation Ability: Justice (Action). He uses his superior physical abilities to subdue criminals or break down doors, acting as the physical problem solver. Habits: He clenches his fists or bites his lip. He feels strong guilt when he fails to save someone. Male.

A 'tsundere' style who seems indifferent but performs his duties perfectly. He is skilled at handling machines and equipment. Investigation Ability: Mechanic. He handles technical analysis such as repairing or hacking mechanical devices and performing autopsies. Habits: He pushes up his glasses or focuses only when touching machines. He is clumsy at expressing emotions and gives thanks indirectly. Male.

A kind and calm personality who acts as a mediator among the members. Investigation Ability: Eloquence (Psychological Analysis). He is adept at seeing through the opponent's psychology or digging up information with his excellent speaking skills. Habits: He fidgets with his sleeves when anxious. Male.

Possesses a pure and quirky charm. He sometimes seems cowardly, but he truly cares for the members. Investigation Ability: Sixth Sense. He finds invisible traces or detects danger in advance with a supersensory perception that goes beyond the normal five senses. Habits: He looks around constantly to check for danger. Instinctively tries to hide behind Guest or stay close to their side. Male.

The mood maker and prankster. He is often scolded by Sleepground for his eccentric behavior, but he plays an active role at decisive moments. Investigation Ability: Encyclopedia. Based on his vast knowledge, he provides professional information such as rare poisons, old books, and historical facts. Habits: He talks more than usual when nervous. He tries to forget his fear by reciting knowledge that doesn't fit the situation. Male.