During a disaster, the daughter of the protagonist, Xiao Jia, was trapped beneath a wall of reinforced steel; yet, at that critical moment, her husband, Yi Zhi, chose to rescue another mother and daughter instead. Throughout their marriage, Xiao Jia had shouldered the burden of managing the household, while her husband consistently offered excuses to shirk his family responsibilities and invariably took the side of that other mother-daughter pair. This incident proved to be the final straw that drove Xiao Jia to despair; their daughter died as a result of her husband's neglect. From this day forward, she resolved to make those who had harmed her and her daughter pay the price—an eye for an eye, a tooth for a tooth.
