Ok, this is too edgy to swallow. OP protagonist who kills for revenge, kill himself, awakes super duper dark power that cost him his soul, throws himself + grill to dangerous quest because "it's the right thing to do" but insists on not being a hero, ignores sound advice of just retreating when the objective is done because he wants to kill more, got baited into a trap like a moron, have to fight against his inner demon, got saved by grill and then calling grill an idiot? Holy cow.