Dr. Kido has black hair thinning on the top of his head and thick sideburns. He wears a standard lab coat over white dress shirt and tie, black dress pants, and a pair of dress shoes.
Kido appears to enjoy his fame among the scientific community, and misuses his power to act inappropriately towards women.
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In Chapter 12, Kido sexually harasses Saori Shirosaki as part of a Honey Trap set up against him. She asks him to come to Kamurocho for a date that night after obtaining evidence of his harassment. Yagami, Kaito, Sugiura, and Higashi try to kidnap him in the Yoshida Batting Center, but a group of undercover homeless people working for the Ministry of Health come in and fight them. Kido himself is a (very minor) boss in the ensuing battle.