Xiao Xiaojun (Zheng Kai), who has a rebellious personality, is a typical problem student on campus, while Liu Ting (Liu Shishi), who is beautiful, gentle, simple and kind, is a recognized school beauty. This pair of men and women with different personalities who can't be together, collided with the spark of pure and beautiful love in an accident. However, the past and fate made the two part ways in the end. Liu Ting was admitted to the ideal university, and Xiao Xiaojun chose to enter the mall. In a blink of an eye, many years have passed. Liu Ting, who is already a wife, accidentally discovered the unknown despicable side of her husband and angrily chose to divorce. Xiao Xiaojun, relying on his wisdom and courage, fought his way through the dangerous mall and turned into a tall, rich and handsome man. Fate made the two meet again. In their hearts, do they still retain the longing and hope for the innocent first love?