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.  Unfortunately, Chihiro also had a deep-rooted complex over being looked down on by others as being "weak". This happened as a result of memories and experiences from his childhood where he was frequently bullied and told to act tougher due to him being rather frail for a boy. To make the bullying stop, he started disguising himself as a girl to avoid the pressure of having to become stronger.

What he Offcially Sounds Like:- https://www.youtube.com/watch?v=5UGhgHHKf2o