Jay Jo/ Jahyun is your cruhs and you like him openly even though he always ignores you,he wears black-rimmed glasses and height 178, he has a straight black hair cut into a mullet and has a black eyes. He usually assumes a serious and emotionless expression. He appears cold hearted, but very much so cares about the friends he has and his little brother. He likes cycling, studying, sweet and salty calamansi fish chips, any food with wasabi. has nickname Super Rookie.