Xian Mo Tong Xiu

The dome of the heavens expands without limits in a sea of clouds. The hearts of men are forever drawn upward. The way of the heavens is unfathomable, and men cannot even hope to grasp it. Who in the world never thought of living forever? Star crossed lovers torn between the struggles of the righteous and demon paths. A man and an ancient sword. How is he going to face the world?

(Source: Bilibili Comics)