Ho, a young underdog who worked for a small snack bar as delivery boy, was deeply attracted by Lee, a beautiful Judo student at the Universal Sports Center. One day Lee was harassed by Black Bear when she was on her way to school. Ho put on a mask and come to Lee's rescue with some invincible strokes. Yet before Ho revealed his true identify, a boxer come to tell Lee that her masked hero was actually himself. Ho's hope scattered, he had no choice but decided to have a duel with the boxer......