Bro, I think feeling rage is valid but, your targets are a bit wrong don't you think?

True, that old geezer are twisted as fuck, hope he dies though, even if he kill Serie, demons will still exist and also humans will continue to progress alongside magic so I don't know whats the old man point.

This manga portrays humanity’s hypocrisy perfectly; many humans would do and justify anything just so their agenda could be executed