As a teenager, Haruchiyo has a calm demeanor and rarely talks. He was extremely loyal and much nicer to those he follows and worships. However, it is later revealed that he is also quite manipulative and is exceptionally good at deceiving other people.In his younger days, before meeting Yasuhiro Muto, he was described as a wild horse who couldn’t keep himself out of trouble. This made it quite difficult for other divisions in the gang to manage him.