EzioAuditore_1
I get that you are introducing new characters and showing that despite his power increase he is still weak, but be careful of having characters show up too much that completely overpower your MC. It can get annoying if the MC is looked down on too much and he can’t do anything about it yet. Other than that I’m enjoying the story and the growth he Cao Cao is showing.
He do actually in some sense it's a stain he'll keep till death living by the mercy of others and author seems to like this very much. While it should be common in DxD, I hope our MC won't be like this for long it remind me of cultivation novel where protag is like a dog pursued and hiding. I would have gone to see satach the queen of shadow but maybe I'm doub meh