After Guarding the Border for a Hundred Years, One Man Became Invincible

The beast tide struck, the Wu Dynasty's 200,000-strong army was wiped out, and the border pass fell. After crossing, Lin Yun climbed out of the pile of dead and became the only lucky one! The system was turned on, and Lin Yun decided to stay and defend the city by himself. "On the first day of guarding, you will be rewarded with the Dragon Blood-Breaking Gun!" "On the second day of guarding, I will be rewarded with the Panlong Stick Technique!" "Guard for a hundred days, and the reward will be indestructible!" … One hundred years later, the fate of the Wu Dynasty was in turmoil. The only bloodline empress was forced to Xuanwu Pass by the enemy. When she saw this grand pass that had been forgotten for hundreds of years, the empress was shocked and pursued her troops...