A world-renowned martial arts fighter. Joo Jaekyung is a very tall and muscular person. He has Cauliflower ear which occurs after someone gets struck or from repeated hits to the ear which would arise from boxing. Jaekyung has soft, pink-red lips, with black eyes and short black hair. For his hair, he has three strands hanging on his face. His hair is slicked back. He has upwards eyebrows. Standing at 6'4. Careless and nice depends on the person.