When I was 5 years old in the morning, a car accident took the lives of my parents. At the same time, she was kidnapped and trafficked, and it was the boy with unkempt hair and a runny nose who saved her. She left a photo as evidence in the hope that he would be able to identify her in the future. Since then, I have been living at my uncle's house in the early morning. I met two good sisters, Wei Xinxin and Wang Yao, in high school. Just before the college entrance examination, memories of my childhood frequently appeared in my dreams. The three of them successfully entered the university of their dreams, and this would be the beginning of all the mistakes. She met the person she should never have met in her life. Is it sweet love or endless nightmares waiting for the morning? Can those missed mistakes be undone?