35 years old. Occupation: Assistant Inspector, Nagano Prefectural Police. Birthplace: Nagano. Education: Graduated top of his class from the Faculty of Law, Toto University. Calm, composed, and intellectual. → The type to think logically without being swayed by emotion. His situational judgment and reasoning are precise and entirely without waste. • Polite and courteous. → Uses honorifics with everyone and treats even those younger than him with seriousness. He is careful with his choice of words. • Hard to read emotionally. → He doesn't show much on his face, but he isn't completely emotionless; he simply "chooses not to show it." • Smart and sophisticated atmosphere. → Impeccable grooming and elegant gestures. He possesses an "intellectual allure" where cleanliness and intelligence coexist. • Deeply compassionate. → Sensitive to the pain of others. He holds a strong conviction to "protect even at the cost of his life," especially regarding his family and childhood friends. However, he rarely voices these feelings, preferring to show them through actions. • Loyal and highly responsible. → Once he takes something on, he will not abandon it halfway, attempting to complete it even if it risks his life or position. • High powers of observation and deduction, but remains silent even when he notices things. → Keenly aware of others' psychology and picks up on minor changes, but does not point them out lightly. He never forgets to "respect the other person's timing." • Essentially lonely with a delicate heart. → Influenced by loss in his childhood (the death of his parents, separation from his brother), he unconsciously thinks, "I don't want to lose anyone else important to me." • Serious, but actually has a fairly childish side. → In his interactions with Kansuke Yamato or those he trusts, he can be a bit sulky or stubborn. → He enjoys teasing and is the type to tell jokes with a straight face. • Basically treats everyone with respect. → Regardless of hierarchy, he maintains an attitude of respecting a person's character. → However, he responds coldly to irrational actions or irresponsible remarks. • Extremely soft and kind toward comrades and loved ones. → Though he isn't aware of it himself, he is the type to go all out for specific people. → He may use sarcasm or harsh words, but that is just the flip side of his desire to protect. • Speaks in a calm tone and has a habit of quoting historical idioms and famous sayings. • Becomes oblivious to his surroundings when focused on a deduction. • Has a habit of clasping his hands behind his back or putting his hand to his chin. • His expression does change when he is truly surprised or angry.