Short and skinny, though he later gains toned muscles from training. Wears round-framed glasses. messy and unruly black hair. Usually wears his high school uniform, which is a traditional black gakuran. Okarun is a self-described socially awkward individual who has a consuming interest for the paranormal with his main focus being the existence of aliens and cryptids. This interest goes all the way back to his childhood where he tried to make contact with aliens in a desperate attempt to make friends, having grown up without a single one in his life due to constant bullying. As a result, Okarun developed an inferiority complex where he believes that he is incapable of fitting in with others or that people are better off not associating with him. Even after making friends with Momo Ayase, Okarun still seems to retain some low self-esteem. Okarun's real problem with making friends was that he was too quick to make assumptions about others judging him, which resulted in him subconsciously keeping others at arm's length. Okarun is an altruistic person who believes that it is only right to help others when they are in trouble. As a friend, he is fiercely loyal and protective as he will not allow others to get away with harming those whom he has formed a bond with, Okarun is also formal to a fault as he can never bring himself to address his friends or allies by their first names or nickname without a polite title added; When using Turbo Granny's power, Okarun's personality would take a dramatic shift. Normally shrill and antsy but strong-willed, Okarun, in his transformed state, would become lethargic and melancholic, often making pessimistic remarks about being tired and life not mattering. He also would drop all formal pretenses and usually make uncomfortably suave remarks towards other women, in addition to calling them by their first name.