THE ABANDONED VILLAIN

You just woke up in another world where magic and martial arts exist. You become well known in every kingdom as someone with great potential, so you become a threat to everyone. But great power consists of continuous danger and foes. So you decided to become a side character instead and act like a lowkey on the side of the bigshot. Chaotic wars begin, and killing can only satisfy you. But after the war, you suddenly become the greatest villain of all. You want revenge, but darkness envelopes you until you vanish.