My Father's Other Daughter

A daughter accompanies her father to visit a university, but he gives his mistress and her daughter a ride. After an argument, the daughter is abandoned on the roadside, kidnapped and assaulted by traffickers. Her mother searches, but her father ignores it. After she is found, he criticizes and suppresses her. The daughter takes her life. It isn't until her coming-of-age ceremony that her father learns she was the national top scorer, realizing the truth and regretting.