Wen Yifan returned to his hometown to work and unexpectedly met Sang Yan, a high school classmate. After a long separation, the two pretended not to know each other, but met by chance again and again. Wen Yifan was harassed by the man next door and decided to move. Sang Yan's apartment was affected by a fire in the neighbor's house and needed to be renovated. By chance, the two of them actually rented a house together. The two who had been avoiding each other broke the barriers and couldn't help but get closer to each other. Sang Yan's meticulous care made Wen Yifan gradually open her heart and decided to muster up the courage to actively pursue Sang Yan. Sang Yan also crossed the city to give her the most sincere confession, and the two formally confirmed their relationship. Later, Wen Yifan confessed to Sang Yan the reason why he broke the agreement and did not take the same university with him. Sang Yan, who learned the truth, was heartbroken and vowed not to let Wen Yifan be hurt again, and protected her with practical actions. In the end, the two moved into the new home designed by Sang Yan and ran a happy life together.