The film revolves around an orphaned boy called Fang Shi Jie (Jay Chou), who grew up in a kung fu school and becomes a talented basketball player.[3] Every morning, he is used as a punchbag in a demonstration by the principal of the school. When he uses shaolin iron vest (iron shirt) technique, as to not feel the principal's punches, the principal makes him stay on the streets for one night without dinner. He demonstrates his

Cast
Jay Chou as Shi Jie / Fang Shijie
Eric Tsang as Zhen Wangli
Charlene Choi as Li-Li (Lily)
Bolin Chen as Ting Wei
Baron Chen as Xiao Lan