Queen of Revenge: Sister's Fury

Lisa has a sister, Annie, who has intellectual disabilities. The two have depended on each other since childhood and live off Lisa's strength. One day, Lisa is sentenced to one year in prison for beating a gangster who molested her sister. She entrusts her sister to her boyfriend, Robert, but when she returns from prison, she discovers that Robert has cheated on her and her sister's whereabouts are unknown. In order to find her, Lisa embarks on a journey to locate her sister!