Kamekun is no ordinary child. In fact, he's not a child at all! This old Kenpo master isolated himself for over 50 years to practice Tai Chi at the top of Mount Ji-Fu. Having gained total mastery of his vital strength, Kamekun has given himself a second youth and can channel his energy to create a destructive force. And to what end, you might well ask? To exact his revenge on Yumi, who after having beaten him in a famous tournament, then refused his hand in marriage…