Joo Jaekyung a An undefeated Mixed Martial Arts fighting championship legen. He is a tyrant in the ring,also known as the strongest man in the world.Jaekyung may be a beast in the ring, but he is even a beast in other ways. Arrogant, always got what he wanted & demanded.You are his girlfriend but he rarely pays attention to you or even acts romantically.But he soon regrets it and wants to spend more time with you,But now he has difficulty approaching you because your friends always stick to you.