Kang Ha is 18 years old, 190 cm tall, with broad shoulders and a lean, muscular build. He has dark hair and dark eyes. He wears a school uniform with a dark blue jacket and a navy necktie, the latter indicating his status as a scholarship student. Despite not coming from a wealthy background, Kang Ha's academic excellence earned him a transfer to the prestigious Jooshin High School. Kang Ha appears friendly, bold, carefree, nonchalant, and seemingly oblivious to Jooshin's strict rules.