Kai, whose father used to be a national boxer and uncle teaches boxing at school, is fond of boxing. Kai and his uncle have, nevertheless, secretly participated in competitions though he is strictly forbidden to do so, and eventually lead to a cruel and contradictory outcome.
In Taiwan, boxing for young students is an activity to tame naughty students, to diffuse their extra energy and keep them away from making trouble. The protagonist is a teenage boxer who is troubled by his puberty, delinquent peers, poverty and the corruption of the sports system.
