Li Qianyun, who entered the music department of the university, met Xiao Qingchuan, his first love who had transferred and disappeared, and Shang Yufei, an outstanding boy from the performance department. The once innocent first love boyfriend fell in love with her again, and the warm and outstanding student also confessed to her on a bright afternoon. But she never gave an answer. Four years later, the love triangle was staged with revenge and conspiracy.