Movie Story : In what was supposed to be his final boxing match before retirement, TAN Kai accidentally beats his teammate WANG Yao to death. WANG's heart is transplanted into a young girl, LI Chuan, and Tan, consumed by guilt, seeks her out. As the two slowly build a friendship, Li's body starts rejecting the heart, and the surgery she needs is far too expensive. Tan decides to put his gloves back on one more time to atone for his sins and pay for it.