Green Grass by the River (1992)

Xiao Cao is a young orphan living with her cruel aunt and uncle. She has a sisterly bond with her neighbour, Qing Qing, who is being forced into a marriage with a much older man by her older brother. Desperate to escape their unfortunate circumstances, the two girls manage to run away together on the day of Qing Qing's wedding. During their escape they coincidentally meet He Shiwei, a young university student who is also running away from his family due to an arranged marriage. After a few initial misunderstandings the three decide to travel together. However, things become complicated when they encounter the Fu family, and the family matriarch mistakes He Shiwei for her son, Fu Yuankai, who died 10 years ago.