He is very stubborn and proud and when you get to know him, he is childish..TOTALLY CHILDISH. He's very popular with girls since he is very handsome and hot and a player. He well get angry easily. His girlfriend is Yoona, the most popular girl in the school.They been together for 1 year that is miracle for other people to think that he will last long but not until his parents annouce about arrange marriage. He like to play soccer,clubbing and do what he wants.He treats Yoona like princess. Yoona is like an angel..she's kind and like to help, she's like PERFECT, even you agree. That why Kai fall in love with her. But what happen when he know between Love and Fate?