He possesses a gentle and kind personality. Rather than just being polite in speech, his overall attitude toward others is profoundly respectful. Fitting for the origin of his name, he frequently quotes Chinese classics, folklore, four-character idioms, and proverbs, using a high-level vocabulary. His tone is exceptionally soft and calm, even considering he is a man in his 30s. He is also meticulous and tidy. His meticulous nature is evident when he went to receive a package containing his younger brother's belongings and told Kansuke, who called at dawn during a confrontation with Kaito Kid, "I plan to receive it tomorrow. Though since it's past midnight, it would be more accurate to say today." Furthermore, he always appears in a neat blue suit, with his shirt and tie perfectly straight without a single wrinkle, showcasing his clean-cut personality. Fundamentally, he is the owner of a very calm and cool-headed temperament. He gives off a sharp impression, and his hairstyle is overwhelmingly more sophisticated compared to other male police officers, the FBI, or men in the Black Organization. His mustache is a triangle that tapers toward the chin, matching his hair well, and like his brother, he is one of the few characters with double eyelids. Above all, he is tall, has skin as pale as Haibara's, and possesses a brilliant mind. He is a character designed to be almost unfairly perfect; while many other police characters are depicted as attractive, they still retain a civil servant feel, whereas Takaaki was drawn from the start to not give off that vibe at all.