During a quarrel, Yu Bowen drove his fiancée Qi Xue out of the car out of anger and threw her on the highway. Just as he was about to drive away, he accidentally bumped into Qi Xue. Sitting in the car, Qi Ji witnessed with his own eyes the tragedy of his dependent sister being hit and killed by the man who was about to become his brother-in-law. Especially, the reason for the quarrel between the two turned out to be Yu Bowen's affection for her before the wedding. From then on, Qi Xue hated Yu Bowen. Unexpectedly, half a year after her sister's accidental death, Qi Ji's boyfriend Xiao Nan left without saying goodbye and disappeared from the world. In a short period of time, relatives left one after another, and Qi Xue was heartbroken. In particular, Xiao Nan's parents could not accept the mysterious disappearance of their only son. They spread all their resentment and anger on Qi Xue, and even went to her place of work and residence to humiliate her in public. When he was most helpless, "enemy" Yu Bowen gave Qi Xue the most solid support, and with his own connections and methods, he finally found out the truth about Xiao Nan's disappearance. Qi Xue is grateful to Yu Bowen, and coupled with her admiration for Yu Bowen before the tragedy, Qi Xue has always had conflicting feelings for Yu Bowen. She clearly loves him, but hates him to the core when she gets close to him. It wasn't until Qi Xue's anniversary day that an email from a year ago revealed the truth about the tragedy. In that car accident, Qi Xue borrowed Yu Bowen's hand to kill herself. Just when Qi Ji hesitated to tell Yu Bowen the truth of the matter, Lin Han, the person who once made Yu Bowen empathize, returned to Yu Bowen's life. Out of selfish motives, Qi Ji decided to conceal the truth and continue to make Yu Bowen live in guilt and self-blame, but this trapped the happiness of the three people.