Zhao Xiaoxiao, abandoned by her grandfather in the wilderness due to being deemed a "mother-killer," is taken in by the driver Zhao Yongqiang as his adopted daughter. Years later, when Zhao Yongqiang is diagnosed with cancer and needs money for treatment, he turns to the Lin family for help. However, her grandfather coldly prevents her from seeing her adoptive father one last time. Filled with resentment, Zhao Xiaoxiao seeks revenge by becoming a private tutor in the Lin family.