Liuli and Yanghui are playmate from childhood ,they practice “Kickboxing” and become nation teammate all together . They never detach and help each other. They like sister, friend or lover.When Yanghui is critically ill, Liuli stand on the Olympics .In the final,Liuli was kicked down by the counterpart time by time , she stood up again and again till her left arm was broken. Actually she stood again.Her action conquered the counterpart and surprised all audience .Finally Liuli won the game.