Duan Ruonan and Fan Xiaowei were good friends who could talk about anything. After her bestie was betrayed by a scumbag, Ruonan took Xiaowei home to live with her boyfriend. Unexpectedly, because of the three of them living together, Xiaowei and Ruonan's boyfriend Li Xiao developed a taboo love, and started an underground relationship behind Ruonan's back. On the anniversary of Ruonan and Li Xiao's love, the emotional entanglement of the three surfaced, and the former besties became enemies overnight, and Ruonan left sadly. But the good times didn't last long. When the passion between Li Xiao and Fan Xiaowei gradually faded, Xiaowei, who was extremely insecure, began to show an almost perverted desire to control Li Xiao, which made Li Xiao breathless. Ruonan and Li Xiao met again by accident, and the three were involved again. Li Xiao, who was tired of Xiaowei's desire to control, rekindled his old feelings for Ruonan and broke up with Xiaowei. Xiaowei blamed all the sins on Ruonan, so she joined Ruonan's new company and started her revenge plan