If you're on the fence about trying it:
Its basically you got isekai'd, but semi-voluntarily in a coerced fashion. Outside of the whole being enslaved aspect, there's nothing "extreme" if that's what you're worried about, but just know that you're basically starting from zero in terms of power level and you're surrounded by some "superior beings" who have their way with you initially. It kind of sets up the plot if that makes sense, so it'd be a bit weird to skip it. Its mild basically insofar, but omnipresent for the meantime while the MC starts the journey.