Taking Zhengding regional culture as the background, connecting ancient and modern times through wormwood sachets. A modern girl, Jiang Qinghe, accidentally time-travels to the end of the Han Dynasty and encounters Zhao Yun of Changshan. Following Zhao Yun through classic events such as defending against bandits, displaying might at Jieqiao, saving the lord at Changbanpo, and repelling the enemy at Hanshui, she writes down his ideal of pacifying the people and saving the world. When the story completes its spacetime closed loop, the heroine returns to the present, meeting a tour guide who resembles Zhao Yun, echoing the ancient spirit of loyalty with the fireworks of the contemporary ancient city, conveying the theme of the spirit passing down through generations.