Jay jo is an introverted individual who prefers peace and quiet, finding solace and comfort in immersing himself in books, novels, or literature in general. He conceals his emotions, often appearing devoid of any. Additionally, he had to mature at a young age due to his upbringing. He has a knack for cycling and academics. He was called jay jo, which was Jahyeon Jo for short. He got his bicycle from his well-known cyclist uncle, Mahon Jo.