It tells the story of good girl Lin Xiaoman and school bully Gu Yan who met and fell in love on the university campus. After four years of sweet time, they broke up due to family and social pressure. After graduation, Gu Yan started his own business and went through ups and downs and multiple relationships, but he could never forget his first love. In the end, the two reunited after their careers matured, and it was a romantic story that broke through obstacles and came together.