Ordinary girl Liu Hanzhang unexpectedly binds with a system, her daily life broadcasted onto the ten-thousand-realms sky screen, where emperors and generals of two thousand years become the audience. She takes in Sui dynasty orphan Xu Yanyan, patiently accompanying the child to understand modern life from a bowl of hot rice, a new set of clothes to studying and seeing a doctor, using respect and companionship to help her regain a sense of security; she also takes her into the ancient city of Yangzhou, experiencing the canal, gardens, and mortal fireworks. Beneath the sky screen, dynasties of monarchs and ministers see the warmth of civilization, re-understanding people livelihood, responsibility, and family affection in the companionship intertwined between past and present, also jointly witnessing this warm, healing, and mutually achieving long growth story.