The story takes place in a household of three humans and three cats, set against the backgrounds of "school," "home," and "company," narrating tales of people and cats, and the interactions between them. Daughter Xiao Xiaocai often wonders why cats can do certain things while she cannot, leading to a series of amusing stories. Other characters include Mother Xiao Mi'er, Father Caige, Rouzong (cat), Ajuan (cat), Dengdeng (cat), Teacher Xixi, and more. They vividly illustrate the saying, "Born as a human, I'm sorry—this is the true portrayal of humans being inferior to cats!"