Mu Yixuan, an ordinary high school student, suddenly lost her mother one day. In despair, she ran into her boss during her escape and was used by him to embark on the road of revenge. However, while sneaking into the school to work as an undercover agent, she fell in love with her cold and violent enemy and met him again. A handsome and affectionate rich man, when the love that is mixed with love and hate and difficult to choose is about to become clear, she is threatened and has no choice but to kill her beloved. Only later does she learn that everything is a misunderstanding and what kind of confusing life experience the male protagonist has. And when all the mysteries were revealed layer by layer, the male protagonist suddenly disappeared. Is he dead or alive? Can they finally get together?