I’m into Invincible Protagonists Who Kill Without Hesitation. They Have to Be Invincible from Start to Finish, Not Just for a While

I'd like to read books similar to I'm Already Invincible, So Why Cultivate? (The Immortal Emperor Can Kill with a Flick of His Finger). The protagonist must be completely invincible, openly aware of it, decisive and ruthless, and not a saint. Don't recommend stories where the protagonist is merely on the path to invincibility. I want true, absolute invincibility: provoke me and I'll wipe out your entire family.