Museum of Deadly Beasts - Chapter 6: Definitely A Con-Man

A young orphaned boy named Mu Yi is saved by an old travelling Taoist Priest. They travel the world ‘scamming’ people by ‘exorcising ghosts’ and ‘slaying demons’, that is until the old Taoist Priest dies and Mu Yi is forced to realise that all is not as it seems. He was told stories of armies of ghosts, hordes of zombies, horrifying demons, and worst of all, the cultivators who controlled them.

Mu Yi takes his first steps towards rising to the top of this dark and cruel new world.

- Description from Novelupdates

Rise Lee, a well-known A-rank esper in the federation. He was even ranked as one of the strongest among the A-ranks and recognized as one of the hopes for humanity. However, he wasn't only famous because of his prowess or his attractive appearance; Rise was more infamous because of his terrible personality. He was called a villain by most guides and espers for a reason.And who would guess that Rise Lee was really a villain, in a literal sense? The terrible truth then unfolded to him. He, Rise Lee, is one of the main villains of the novel. Rise Lee spat out a mouthful of curses and swore that if he had a second chance, he would mess up this damn novel until everyone went down with him. If the author was in front of him, he too would be destroyed with him! And a second chance did come! Rise Lee, the villain, woke up five years before the main storyline! Heh. So what if he was a villain destined to die? That protagonist who killed him, and the author... He would screw them over. Being a villain, be damned. In this rebirth, he would take and mess up everything. What did you say? The protagonist’s love life? Heh. That too. Rise would take his lover. The male lead... will be his.