Responses
They probably mean when MC turn his people into dark celestial. And yes, tbh I saw it as a little cruel and unfair to the people, but if MC didn't do that then they'll likely end up like the other celestials (yk the slaves). Anyway, I don't think the duke action is "karma" for MC, they just had a misunderstanding because that system bitch interfered.

I hate this dumb main protagonist he’s the one that wronged a lot of people and they’re making him the victim. I mean the duke action toward the main lead felt like karma he deserved that’s the only reason I kept on reading.