In order to save his seriously ill family, Ruan Zhixia, a perfumer who was heavily in debt, received a sky-high price contract from a man at the top of the empire when he was desperate. Fu Yunshen, the most powerful person in the capital, is handsome, wealthy and ruthless, but he suffers from severe insomnia and anosmia. He has no sleep for long nights and lives like a cold machine. Until he met her. Her unique, sweet aroma of grass and trees was his only antidote. With a contract, she became his exclusive "humanoid soothing incense", which he would never leave day and night. Ruan Zhixia thought this was just a transaction. She sold her scent and he paid the money to save his life. They owed nothing to each other. She guarded her heart carefully, but she gradually fell under his protection and extreme love again and again. He spent a lot of money on her, cleared all obstacles, and elevated her to the altar of perfumery. "Fu Yunshen, why are you so nice?" The man held her in his arms, his voice low and hoarse, with longing that had been suppressed for many years: "Because only your smell can make my world no longer a wasteland." She thought she was his medicine, but she didn't know that he was already terminally ill, and she was his only salvation. But when she was finally moved and prepared to run towards him, she unexpectedly discovered that the car accident that destroyed her family was actually related to him... Love and hate, redemption and destruction, how should she choose?