Su Zijin fell in love with Gu Yan at first sight when he was in high school. He had a crush on Gu Yan for nine years and stayed with Gu Yan all the time. However, his childhood sweetheart could not withstand the fall of heaven. In the ninth year, Gu Yan had a girlfriend. The girl jumped off a building to frame Su Zijin, but she broke her legs. Gu Yan failed to marry the girl due to family pressure, so he married Su Zijin. After the marriage, he tortured Su Zijin, and finally Su Zijin committed suicide. But at this time, Gu Yan had fallen in love with Su Zijin. Three months later, Gu Yan knew the truth, but Su Zijin could never come back.
Concept: belated love