In the 327th year of the Great Chu calendar, a man-eating beast crawled out of the eclipse mist. The Thirteenth Barrier was without food for forty days. The aristocratic troops robbed food and killed people inside the barrier, while the people gnawed tree bark on the wall and waited to die. No one noticed that the postman who was thrown into the mass grave was holding half a blackened fragment of the king's life and opened his eyes - a battle flag loomed between his eyebrows, and a mechanical voice sounded in his ears: [The military formation deduction system is activated, and primary battle formations can currently be deduced (consuming military merit points). Three days later, when three thousand earth-shattering bears crashed into the most broken northern barrier, everyone was waiting to see the joke. But he saw Lin Fu waving his sword and pointing at the remaining soldiers: "The flying geese formation!" Break! ' The next moment, the centurion, who was ridiculed as 'the old, weak, sick and disabled', actually cut through the beast tide like a steel knife - the postman who had been stepped in the mud wanted to make the Thirteenth Barrier remember: From today on, who is the one who can suppress the Nine Tribulations Catastrophe! "