I'm having a problem, I think, in a world I've built. From previous questions I've asked here, the world is a near to mid-future dystopia of the United States in which the government has collapsed under debt and now functions primarily to transfer the country's wealth to its creditors, and one of the ways it does so is by selling criminals and debtors as slaves, many of them to the upper 0.01% (most of whom hold public office). The 99.99%, therefore, are living in abject poverty by design, as it keeps a fresh supply of criminals and bankruptees coming into the jails (and from there to the auction houses).
One of the main characters, after pleading guilty to a crime, lucks out to the equivalent of hitting the Pick 6, and finds themselves living an enslaved life that most people still living free could only dream of. The work's easy (housemaid/servant type work, with plenty of others to share the load since they're not getting paid for it), the living conditions are palatial even by today's middle-class standards, the owner is kind and caring. This is not the norm, to be sure, and the character knows that; other slaves sold alongside the character would have gone to plantations, factories, blood sport arenas, even brothels, and their life expectancy would be months if not days.
Here's the main question. Given this situation, what reason, if any, might this character have to want to regain their free status? I can't think of any good reason the character might have to want to go back to the "real world", and in fact I'm considering having this character and other slaves of the same owner fight, even violently, to keep the life they have as slaves against external forces that want to ban slavery as inherently evil, but don't have the financial power to actually improve the lives of the 99.99% beyond that.
The follow-up is obvious; is this reversal of the norm for a slave system outwardly plausible, even if I acknowledge the norm exists? This idea of the pretty-much-perfect life gained through slavery is something I can play with as an inversion of the normal 300-style "freedom is worth any price" message, but it's got to be believable, on some level, to be engaging. The challenge the story poses to the audience cannot be suspension of disbelief that a life like this is possible in a slave system, it has to be that they find themselves essentially cheering the character's efforts to stay a slave and working through that cognitive dissonance.