Ning Xiaonuan, a modern female college student, accidentally traveled to an imaginary modern urban world and became the nanny of the overlord Emperor Shaojue's family. She awakened the ability to "eavesdrop on the heart" and can directly hear the inner monologue of the two-faced overlord. Faced with the young Emperor who is cold and rational during the day and violent at night, Ning Xiaonuan responds to various crises in a "possessed by drama spirit" way, navigates the battles of wealthy families and workplace turmoil with ease, counterattacks from the lowest nanny to a close valet, and finally embarks on a romantic journey of "two-way healing + sweet love" with the boss.