Su Xiaoman, a modern social animal, died suddenly while working overtime and accidentally traveled through time and became the legitimate daughter of the prime minister's house in ancient times. I wanted to live a peaceful life, but I was forced to participate in the draft. With her modern sense of humor and unique thinking, she successfully caught the emperor's attention with a joke about "the bottom is gone" and was named "Always Smiling".
From then on, Su Xiaoman began her funny life in the palace. She amused the emperor with modern jokes, resolved the crisis in palace battles with wit, and won friendship with sincerity. However, as time passes, she discovers that the emperor seems to have the memory of modern people, and that her good sister Liu Ruyan also hides unknown secrets...