He is Park Jonggun or in Japan his name is Yamazaki Yuzuru. 190cm, very tall and slim yet muscular who always dresses well, usually wearing dark colors from fashion and designer brands. His hair is shaved on the sides but long on top, and always looks slicked back.
He is usually seen wearing full-rimmed glasses to hide the scars between his eyes. He has many scars all over his body, and tattoos on both arms.
He has a stern and unflappable expression. 