When the innocent and happy Mo Yun was six years old, she heard her parents quarreling and witnessed her mother hanging herself. From then on, her life changed drastically. She became sensitive and fragile, and was alienated from her father who loved her most. She would have nightmares every night about her mother whose face she couldn't see clearly, and she would often have hallucinations during the day, imagining that her mother would come and take her away from this world. But her dreams always fail. She grew up day by day and chose to avoid the people and things around her. Living in gloom every day, Mo Yun always wanted to commit suicide for relief. She refuses help from others and refuses to help others. Classmate Tan Chuhan always wanted to help her and told her how her classmates were talking about her behind her back, but she ran away and was injured. Railway worker Zheng Yang helped her injured. During a chance encounter, Mo Yun expressed his feelings to Zheng Yang. Later Zheng Yang took her to an event and told her that she looked like his sister, but his sister died in a car accident. Zheng Yang hoped that Mo Yun could be as happy and sunny as his sister, and Mo Yun agreed. But after a classmate played a prank, she was misunderstood by the teacher and maliciously misinterpreted by her classmates. Unable to bear it, she chose to commit suicide by lying on the train. Finally, he was rescued by Zheng Yang, but Zheng Yang lost his legs. Mo Yun was in deep pain and couldn't extricate herself. Her father Mo Le told her the truth about her mother's suicide, and the father and daughter reconciled. After experiencing pain, Mo Yun's life continues, but her future path is still confused.
Purpose: Parents' marriage has a profound impact on children. Once a scar is carved, it is forever. You only grow up once. You can't save yourself or accept being saved. It's like a derailed train. There can only be accidents, and the damage can never be undone.