Boxing champion Chung Lei is dedicated to training professional fighters. Despite financial struggles, he remains steadfast in his ideals. Advertising executive Lin Xue discovers her boyfriend Daniel is having an affair with boxing champion Sun Yayun. Determined, she challenges Sun to a match and begins rigorous training under Chung Lei. Through intense preparation, Lin Xue transforms, realising her fight is not for revenge but for self-growth. On match day, she steps into the ring fearless, ready for the ultimate showdown.