When she was only seven, Zhuo Yifeng witnessed both of her parents die in a car accident. The extreme trauma causes her to suffer from selective amnesia as she completely blocks out her past experience. Zhuo Yifeng's parents leaves her under the care of their friend Su Zijian whose young son Su Muyun is two years younger.
Assuming a new identity, Su Nianfeng grows up alongside her younger brother Su Muyun except their relationship is less than friendly. Su Muyun is a legendary name at school while Su Nianfeng is someone easily ignored. During her third year, Su Nianfeng who had no goals in life becomes determined to apply for her medical school because of her good friend Yue Diyin. Yue Diyin is her close confidante. He is warm as the sunshine but suffers from a strange disease.