The Villain, The Hero, And A Deal (UNDER MAJOR REVISION)

Llavin, the "villain" of the story, was given a chance by an unknown deity -- a second chance in life to fulfill his desperate wish. But as he goes back to time, things turned complex and complicated than he expected it to be. To fulfill his wish, he needed to change his fate first even if it means changing allies, abandoning plans, and overcoming the schemes of the enemies. And most importantly, he needs to kill a certain 'hero' before the 'hero' kills him for the second time.