The male lead is Ye Chen, and the female lead is Liu Qingcheng.

Ye Chen and Liu Qingcheng met in the same university. At first, they were ordinary classmates, but as time passed, they gradually developed a good impression of each other. By chance, Ye Chen and Liu Qingcheng were assigned to the same team to complete a research project together. In this process, they gradually came into contact with each other and found that they both had unique charms and personalities. Liu Qingcheng was a smart, cheerful, and brave girl while Ye Chen was a careful, considerate, and responsible boy. The two of them complemented each other and gradually became best friends. However, their relationship was not blessed by the people around them. Ye Chen's ex-girlfriend had been pestering Liu Qingcheng's family, and they were also prejudiced against her. Under such pressure, Ye Chen and Liu Qingcheng had no choice but to live separately for the time being. However, they did not give up on each other's feelings. In the days after they parted, Ye Chen and Liu Qingcheng showed concern and support for each other through text messages, phone calls, and social media. They believed that as long as they truly loved each other, they would be able to overcome all difficulties and finally get together. In the end, Ye Chen and Liu Qingcheng were reunited by chance. They expressed their feelings to each other and decided to face the challenges of the future together. With each other's company, they finally overcame all the difficulties and came together.