After graduating from Yunnan Normal University at the age of 24 and earning her teaching certificate, Xuan Ying went to teach in a rural mountain region. There, she met the person who would bring her a lifetime of happiness: Yan Yichen. Influenced by his mother, a doctor, from a young age, Yan Yichen aspired to become a doctor who could save lives and heal the injured. At 26, after achieving his goal, he went to work in the mountains. On the very day he arrived, he met Xuan Ying. Love at first sight was not enough to make them start a relationship. Two years later, Xuan Ying completed her teaching assignment and returned to teach at an elementary school in the county where she had graduated, while Yan Yichen remained in the mountains. Another two years passed before Yan Yichen returned to work as a doctor at the county hospital. By chance, he was reunited with Xuan Ying, and he began quietly courting her. When he finally confessed his feelings, they got together and began a sweet life together. Through Yan Yichen and Xuan Ying, Xi Yaoyu met Su Weiyu. Su Weiyu fell in love with Xi Yaoyu at first sight, but all he got in return was a blunt rejection. Then Su Weiyu began pursuing her relentlessly.