In ancient Jinyang, Princess Jinyang suddenly fell gravely ill as a strange sky canopy manifested out of nowhere, accidentally saving her through the modern youth Lin Wenjie. Emperors and commoners across successive dynasties all witnessed everything synchronously through the sky canopy. Separated by the vault of heaven, Li Shimin and his empress anxiously watched their daughter receive medical treatment in modern times. Lin Wenjie secured an identity for the girl, meticulously cared for her health, and took her to experience the food, clothing, housing, and transportation of modern society. Monarchs and ministers of all dynasties had their horizons broadened, witnessing countless advanced artifacts. Unable to bring their child back, the imperial couple could only watch from across the sky canopy, witnessing the little princess embark on a brand-new life.