The school's model student Li Minjia and Zhang Cheng, a boy from the next class, are childhood sweethearts who grew up together. They are a perfect match in appearance, personality, family background and upbringing, and are recognized by the whole school as the golden boy and girl. During the long summer, Minjia became a high school student and unexpectedly met Zhao Jianyu, a "bad student" in the school. The young girl in her prime quietly fell in love with this arrogant boy, but Zhao Jianyu deliberately turned a blind eye to Minjia because of a misunderstanding. In the second year of high school, Zhang Cheng, who was about to go abroad, confessed his love to Minjia before leaving. Minjia was speechless, and the girl who was wandering between the two boys was in great pain. After Zhang Cheng went abroad, the proud Zhao Jianyu suddenly proposed a date to Minjia. On the day of the first date in life, the girl who longed for love never waited for the boy to show up. Seven years later, after a long love affair, Minjia finally agreed to marry Zhang Cheng. But at this moment, Minjia, who was out for work, unexpectedly met the person she had long forgotten...