After Duan Ruilin was injured in a car accident, Er Ya from the mountains cared for him until he recovered. To help her escape the abuse of her birth family, he took her to live in Shanghai and gave her a new name: Duan Yuxi. As they spent time together, they gradually fell in love. Through her own hard work, Duan Yuxi got into a university in Shanghai. But because they were considered siblings, they kept their feelings to themselves. When his best friend confessed to her, Duan Ruilin could no longer hold back and laid his feelings bare. Their parents initially opposed the relationship, but they couldn’t bear to lose Yuxi, so they eventually gave the couple their blessing. Duan Yuxi excelled and went abroad to study. After returning with her degree, she was proposed to by Duan Ruilin, and the two lovers finally found their happy ending.