@Akxera nope.
Kakao did draw the LN illustration (if you're looking for his artpiece you can look it up in the novel updates link), but for the manga it's Mizoguchi gelatin sensei (yes he draws ero too)
@MrMcNasty I mean unless you can guaranteed what they're going to eat, where they're going to live, what they're going to work for then yeah that's a lot of effort.
IMO arslan senki did a great job at explaining why as bad as slavery is, you can't just free them and be done with it.