Maybe I blacked out, but I don't recall "freeing" anyone. The magical tattoos have definitely stayed there. Not just that, but you effectively become a dictator in the latest update and the first thing you do is buy a slave maid from a subject. Maybe in the future I'll be able to plant the slave trader's head on a spike, but I'm running on current content.
Don't get me wrong, I don't automatically hate on games that have that kind of dark content (I like Ravager, lol)- but the game's tone doesn't feel right to me. If MC was an edgy morally grey guy, sure. Instead he's a modern-day human I can play as the usual saint, except he's just fine with that "one thing".
Nothing wrong with having different tastes though. If I understand it right, isekai are basically self-insert fantasies. Just that in this case my self-insert would rather be spreading Freedom™ and getting ladies that way.