A top modern-day female mercenary transmigrates into the body of Su He, a low-ranking conscript laborer stationed at the Qin Dynasty's frontier. After personally killing a monster beast and earning military merit, she has it forcibly stolen by Commandant Zhou Cheng. Kicked into the mud in front of everyone and subjected to relentless humiliation, she remains a seasoned battlefield killer trapped in a frail body. Endurance does not mean submission. Just as the confrontation escalates, monster beasts roar from the distant mountain forests. All beasts roam through the night, and a beast tide is about to sweep through the military camp. Whoever steals my military merit will pay me back a hundredfold!