The Scum Emperor's Redemption System - Chapter 1: Impossible Promise (NSFW)

Renji Kurozawa was just another nobody—until he died and was reincarnated in a world of swords and magic. Summoned alongside other “Chosen Heroes,” he hoped for a second chance at life.But his gift was different. “Death Claim”—the power to steal abilities from those he kills.Betrayed by his allies and left for dead, Renji embraces his dark power. With every enemy he slays, he grows stronger, turning from a forgotten outcast into the most feared force in the kingdom.Now, hunted as a villain and pursued by gods, Renji must carve his own path—one kill at a time.If fate wants a monster, he’ll give them one.

Liu Duo was a young girl whose grandmother sold her to four brothers with the intent to be a bride. Unwilling, she ran away the following night, only to fall unconscious while trying to get away. Unexpectedly, however, she was reborn with the spirit of a 25 year old woman, also named Liu Duo.

- Description from Novelupdates

The Hero’s party was attacked by a large group of powerful devils. The party will no doubt be annihilated if this were to go on.

I have been summoned to a game world, a world of swords and magic. Or at least that's what my friend said.I couldn't care less about that.But apparently, I can create whatever eldritch creatures I want, even the ones from urban legends and creepypastas.So what if the people don't like my babies? Screw them.This is the story of how I accidentally became the last boss of the world.