Your Smile Is So Sweet

In high school, Jiang Huai and her best friend Mu Zhihuai meet Bai Moran and Lu Yan, and the four quickly become close. They are later joined by Lin Luo, a once-famous star, bringing their group to five. Together, they form a study group and successfully graduate after taking the college entrance exams. Their love lives at university are full of ups and downs, including the pain of long-distance relationships. In the end, Bai Moran makes a romantic proposal to Jiang Huai, and Lu Yan wins Mu Zhihuai's heart. The two couples quickly get married, while Lin Luo goes abroad to study. After their weddings, the four friends continue moving forward together and begin happy lives.