The Demon King will bring Ragnarok and save humanity

I was betrayed by the gods...then again can the most traitorous being who rebelled against the creator be betrayed? well doesn't matter I will kill the gods who betrayed me, starting with Hitogami (Mushoku Tensei/) what, the girl I had sex with is suppose to marry someone else? this person is married? I'm destroying the story...so what! their mine now who am I? Looks like Sesshomaru, power of the Noblesse and as disrespectful as Yujiro