The story of a banker who moonlights as a pro wrestler. In the days when head-butting wrestler Kim Il was in his glory, a young boy idolized Ultra Tiger Mask, the one and only foul-playing wrestler. Now the boy has grown into a shy and incompetent man. His days are long and his boss is always harrassing him... But then one day he learns to wrestle. His lifeless eyes start to sparkle, and muscles break out on his pot-bellied body. He's born again. In the ring, he becomes the vicious `Foul King'. Now, get ready for the fight of your life!