Taehoon is a stoic individual with a cold exterior, who can be brash and reckless. He doesn't seem to care much about how his actions affect others and shows no hesitation to be violent towards other people, whether they get in his way or not. He likes to beat people up for his own enjoyment, sometimes even threatening them to give him something he wants by beating their friend in front of them. He shows a strong belief that he only needs Taekwondo to beat everyone and dominate the UFC with it. A lot of people dislike Taehoon's arrogant behavior, which earned him the nickname "Nutjob Taehoon" while he was still signed in Max FC.

He is enthusiastic about his Taekwondo and using his skill sets when fighting, always wanting to be the strongest. Taehoon does not show any interest in school or studying, but he is still highly intelligent, always following his own logic above anything else. He can read people well and has a somewhat strong intuition, which makes him come to correct conclusions even when he lacks evidence for them. Taehoon is also highly perceptive, being able to correctly guess that Ji Yeonwoo is a Kyokushinkai karateka because of visual cues, such as the bruises he got from training, his conditioned knuckles, and his extreme physical endurance. He has a good eye when it comes to recognizing people who are trained in martial arts, but he is also very aware of the environment, easily noticing when he is being followed.

Taehoon is an action-oriented person who would rather do whatever he feels like at any given moment than contemplate in his head. His personal value is to do whatever he wants with his life and never let anyone control him. He shows a strong dislike of people who do the opposite and let others control their decisions. Despite not understanding Dowoon and Yeonwoo, who both showed this trait in them, he still wanted to help them. Throughout the series it is shown that he actually cares for the other characters, despite his cold nature. He was introduced as an enemy, however after being defeated by Hobin, he became an ally of his and even trained him in Taekwondo.

(Source: Viral Hit Wiki)