He got duped. If he didn't involve himself he wouldn't be targeted at all. His dungeon didn't get targeted even once by the opposing faction, what makes him think he will be targeted anyway when his dungeon even is in human territory???
People are nagging on mc for taking this deal. Why?
He now has unlimited resources and a golden ticket to go anywhere/do anything with complete security in the entire country. He’s strong enough to keep himself safe from being a target.