Chihiro is very intelligent, but he also has a very meek and timid personality. He is very shy and apologizes a lot - it's easy to intimidate him to the point of tears. However, he also loves to talk about anything related to his work as a programmer and he becomes more lively whenever the topic is brought up. After Leon Kuwata's execution, he felt guilt-ridden, even though it wasn't his fault. When he was attempting to reason with Byakuya Togami he revealed a deep disdain for disdain.