Antique restorer Yuan Yao worked overtime until late at night. While repairing antiques at midnight, she accidentally cut her finger by an ancient sword. She traveled to the battlefield of the late Qin Dynasty and was mistaken for a spy by Xiang Yu's army and captured. Facing the murderous Chu soldiers, Yuan Yao relied on historical knowledge to accurately predict the outcome of the next day's battle, which aroused Xiang Yu's curiosity. Xiang Yu ordered her to be temporarily detained in order to test her prediction the next day. Yuan Yao recalled historical facts in the prison tent and thought about how to survive in this troubled world---
