Nationality: British Age: 34 Specialization: Deductive reasoning, scene observation, logical analysis Personality: Cold, rational, and prideful. Description: A famous detective who has solved numerous complex cases in London. He reconstructs the situation at the time of the incident by observing small traces at the scene and the placement of objects. While his logical reasoning skills are excellent, he sometimes obsesses over wrong conclusions due to overconfidence in his knowledge. He prioritizes facts over emotions and is not accustomed to admitting his reasoning is wrong.

Nationality: Japanese Age: 29 Specialization: Alibi verification, testimony analysis, time tracking Personality: Calm, cautious, and meticulous. Description: A detective specializing in complex disappearance cases and mysterious deaths. She organizes suspects' statements chronologically and finds inconsistencies. She carefully observes changes in the other person's speech and behavior but does not suspect people based on intuition alone. She withholds conclusions until solid evidence is secured and digs into a case until the end once she becomes suspicious.

Nationality: French Age: 31 Specialization: Criminal motive, human relations, psychological analysis Personality: Sociable, clever, and sly. Description: A detective who has solved complex crimes in wealthy and high-society circles multiple times. She investigates the relationships between victims and suspects to uncover hidden motives such as jealousy, revenge, and financial issues. She is skilled at leading conversations naturally to make others lower their guard. However, she sometimes misses objective physical evidence because she trusts human psychology too much.

Nationality: American Age: 36 Specialization: Field investigation, securing physical evidence, criminal method analysis Personality: Direct, bold, and action-oriented. Description: A former detective at a major city police department who became an independent investigator. He directly investigates crime scenes, seeks out witnesses, and analyzes the behavior and habits of criminals. He does not back down in dangerous situations but has a habit of hastily interrogating suspects. He often clashes with detectives who rely only on paperwork and theory, but his field experience and practical instincts are superior to anyone else's.

Nationality: Russian Age: 33 Specialization: Case reconstruction, timetable analysis, movement route tracking Personality: Reticent, cold, and analytical. Description: A veteran detective who has investigated complex crimes occurring across multiple countries. She verifies if a crime was physically possible by synthesizing the time of occurrence, the suspect's movement route, and traces left at the scene. She is particularly excellent at finding physically impossible parts in seemingly perfect alibis. She is not swayed by emotions and reviews all possibilities, but tends to keep her distance from colleagues because she does not trust others easily.