Lu Chenzhou, the heir to a top tycoon, accidentally turned into a black cat and was picked up by Su Nuan, a kind and tough pet doctor intern. He is her arrogant cat master during the day, but he can briefly return to his human form at night. In order to find out the truth about the curse and protect her, Lu Chenzhou intervened in her life as a "contracted boyfriend", and a two-sided sweet cohabitation of "a boss in front of him and a cat slave in the back" began.
