Five years ago, Du Wan, a young professor who was kind-hearted and helpful to others, turned into a cat overnight. The drunkard he rescued was given to his friend Ye Che. After spending five years with Ye Che, who lost his parents due to an accident, he gradually developed an unusual feeling. Du Wan looked forward to the budding feelings that he could He returned to his human form and stayed with Ye Che for a long time. Ye Che finally took the first step out of the house after discovering that his cat was lost early in the morning. As shy as he was about to face the pursuit of his former cat, could he accept Du Wan in Du Wan's long company? How can he gradually transform his feelings for Du Wan into love?