From Handyman to Immortal Emperor! I Will Destroy the Heavens with My Black Sword

[Growth + no system + multiple female protagonists + pretending to be a pig and eating a tiger + the more you look at it, the better it gets] He Huan, a humble handyman at the Zuixian Tower in Qingyun Town, accidentally picked up a black knife and started on a journey against the heavens! A mysterious black sword that can swallow spiritual energy and burn all things is recognized as its master, and a "Sun and Moon Body Refining Technique" for refining the body to become a saint is with him. His body resists flying swords, and his fists smash magic weapons. He transforms from a little handyman who allows others to bully him into a "black sword evil star" who scares the entire world of immortality!