I'm so afraid to see how they're going to handle this chapter in the anime. So far it's been good enough, too over-sexualized in my opinion (they even show Korisu naked, for crying out loud). To me, what makes chapters like this one hit so hard is the fact that we get to see Baiser act like a genuine menace. With the overly light color palette of the anime, it might end up looking cheap and not nearly as imposing as it should.
EDIT: Well, color me pleasantly surprised! The animation is obviously not up to par (honestly, this manga was just begging to be done by Trigger), but the added story elements really helped flesh out Sayo's fall, and Baiser's VA was just top-notch this time around. She finally managed to win me over once she dropped the scaredy-cat voice. The only thing really holding back the anime, in my opinion, is the overall lack of blood. It might seem like a minor detail, but to me, that's what really gives the manga that extra punch of quality and evil perversion that the anime can't reach simply by showing nipples.