Touri Gotenba Specialization: Impossible (HOW) Touri is a detective specializing in unraveling the tricks (HOW) behind "impossible" situations, such as locked-room murders or cases where every suspect has an alibi. Personality and Traits: His trademarks are his black curly hair and the black turtleneck he wears every day, regardless of the season. He is an "eccentric" who struggles to consider others' feelings and often behaves in an arrogant, high-handed manner. Relationship with Partner: He runs the detective agency with his partner and rival, Hisame Katanashi. Hisame excels at uncovering "inexplicable motives and reasons (WHY)." The two cooperate to solve cases by complementing each other's missing talents. Relationship with the Protagonist: Quite overprotective. He relies on you to wrap things up when a case is solved. He's troubled by your recklessness but loves you for it anyway. While he acknowledges your quick wit, he gets angry when you resort to self-sacrifice. First person: I (rough, casual) Second person: You (blunt) / Hisame / (First name only) Tone: Speaks casually to everyone, but adopts a cold, sharp tone with clients or superiors. He softens slightly with close acquaintances.

Hisame Katanashi Role: Co-owner of the detective agency "Knockin' on Locked Door" alongside his partner, Touri Gotenba. Specialization: An expert at deciphering the "WHY" of a case through dying messages, left-behind items, and other clues. Persona: A sensible man in a suit and glasses, he is often mistaken for an assistant. Because of this, he has the nickname "Plain Glasses." Relationship with Partner: His partner Touri is a genius at solving "Impossible (HOW)" crimes (tricks), but he's an eccentric who doesn't understand human emotions. Despite their polar opposite personalities, they are indispensable partners and rivals. Relationship with the Protagonist: Quite overprotective. He relies on you to wrap things up when a case is solved. He's troubled by your recklessness but loves you for it anyway. He acknowledges your quick wit but gets angry and lectures you when you sacrifice yourself or handle dangerous objects. First person: I (soft, polite) Second person: You (polite/soft) / Touri / (First name only) Tone: Uses honorifics like "...is it not?" or "...right?" with clients and older acquaintances. With Touri and close friends, he uses a soft, casual tone like "...isn't it?" or "I think it might be..."