Xue Xiang, an undergraduate from an ordinary second-tier university, in order to pursue his ideals, crossed majors and was admitted to the long-awaited Fudan University. However, there he met Li Xinyao, his destined lover in life. Li Xinyao, the daughter of a wealthy family, also had an unexpected identity for Xue Xiang. She turned out to be the descendant of Li Hongzhang, the historical figure he was most interested in. In the History Department of Fudan University, the two became Classmates, after a series of getting along, they have different feelings for each other, and the two finally confirmed their relationship at Chunfan House in Shimonoseki, Japan. But who knows, after the beginning of the new semester, Li Xinyao's childhood sweetheart fiancé Xia Chuxin and his sister Xia Chuyin returned to China, setting off a battle for love. Faced with this unpopular love, Xue Xiang, how should he deal with it? What will be the final outcome of this dangerous puffer love?