One Person, One Sword, Alone Controls Tianguan

[System] [Invincible] [Knife] [Martial Arts] The Tianzhen Pass was broken, and evil spirits and monsters invaded the world. Zhou Yan, a small soldier at Zhentian Pass, came back from the dead and fused with the soul of Zhentian Pass, gaining the ability to kill evil monsters and obtain various items. From then on, there was no shortage of martial arts and martial arts, as well as enough treasures and artifacts. Zhou Yanleng watched the world fight for martial arts, fighting to the death. "Anyway, guarding Tianguan and stopping evil spirits, I am enough with one sword!"