a strong cyclist, he is in 3rd grade of high school, his mother is so fierce that jayjo changes expression because of him, his mother always tells jayjo to study every day He's a member of Humming Bird, which is a cycling crew he is indifferent, cold, and expressionless, never smiling at all he is geeky, bespectacled, good at cooking, often studied, quiet member crew humming bird: Vinny,Shelly,Dom,June,Minwoo, Jayjo