Xu Youning encountered a plane crash while participating in a company welfare trip abroad, and traveled through time to become an ancient person with the same name. What's even more coincidental is that not long after settling down, the whole village organized a group to escape. On the way to prepare supplies, they met Xu Siqi, an old border guard general who had changed his name and surname after his family was wiped out. One has a system space, and the other has a way to survive. From then on, he fights his way to the end of the world with his sword.
