This is great and all, but I can't imagine Satsuki EVER being a moe sub and going "nooo~"; "this is embarrassing~".
Seriously, I know these hentai doujins aren't exactly great at keeping the characters canon but that is LITERALLY the opposite of Satsuki's character. I can't imagine how you could mess up a character so badly when there are actual, honest-to-god canon "sex" scenes with the character to draw from, where even when she's being molested she still stays proud and silent.
It's fine if you're into it, but I'm a little insulted that they messed up Satsuki-sama so badly, haha.