Gou Signed and Became a Saint in Troubled Times

At the end of the Great Summer, chaos arose. Natural disasters continue, bandits are rampant, and people are in dire straits. A century-old dynasty, a thousand-year-old family, everything is changing. Lu Yuan, who traveled through time, was lucky enough to get the sign-in system. Look at me holding a gun and forging ahead in these troubled times. Looking back at dusk, I see countless geniuses, tyrannical dynasties, and aristocratic families. But I can only look at his back that looks like a god and a demon...!