Xiao Jingling, who had just passed the high school entrance examination and was admitted to Nanxing No. 1 Middle School, lost her father, mother and sister Li Shiling, who had been missing for many years, in a cable car accident. She was not willing to let fate push her to the ordinary again, so she decided to turn into a moth and challenge fate again. Therefore, she came to Nanxing City and met the grandmother who kindly adopted her sister, Li Shi'an who made things difficult for her sister, Lu Xu who doted on her sister, and Zhang Fengfang who knew her true identity. At first, she just pretended to be her sister with the mentality of seeing where her sister lived. Later, after a series of life collisions, she completely fell in love with the Li family and her classmates. The Li family also truly accepted her and determined to live for her sister in her name. At this time, my sister came back. She didn't know where to go, so her grandma took her in again and changed her name to Li Jingling.
Li Jingling's crush on Lu Xu ended due to her sister's return. At this time, Zhang Fenggou took advantage of the situation and entered her heart. The college entrance examination is coming soon. Li Jingling worked hard to get admitted to Nanxing University and stayed with her grandma; her sister Li Shiling accompanied her to study in Germany for love; Li Shi'an studied in the UK.