U Boy secretly conducted and organized bets for K-1 color wrestling matches held in a hall located under a bar. With savvy organization skills and a long line of wrestlers eager to enter the ring, U Boy was able to launch an underground wrestling group. He got his name from the U-shaped bumper pads he wears on his neck and knees. His neck and knees are a mess, having fought years on an iron ring, the symbol of underground wrestling. Though he suffered a humiliating loss against Madroneck King, and was devastated by the defection of several wrestlers from his group, he continues to hold his head high, fighting ferociously. He'd rather die than be defeated.