Bian Feng's Life-Saving Journey

The border is full of smoke, and life is like an ant. Lin Yue traveled through time and became an unarmed border guard, awakening to the plundering system - killing monsters and taking away his life, and using his life to deduce all kinds of magic. In his previous life, he didn't even dare to kill a chicken, but now that the demonic tide is coming, he will die if he doesn't swing his sword. From then on, he used demon blood as ink and longevity as pen, forcibly deducing martial arts in a battlefield filled with flesh and blood, transforming from a cowardly mortal into a life-saving Shura who rose on demon bones. This is not a counterattack novel, but an epic story of growth in which an ordinary person sacrificed his life after being forced into a desperate situation.