i feel like this might end up being really shitty.
Yeah, this mangaka is really doing something that's way out of his element and, let's be honest, that rarely ever ends well lol. I'm not loving it based off the first chapter alone (although that might just be because I like couples, so orgy's, especially those involving pseudorapes really, REALLY piss me off) and if it keeps on with this, i'll probably just drop it. And I'll be honest, it takes A LOT for me to drop a yuri series.
Have guys actually read his/her works? He did pseudo-rape before, he did start off with sex right at the very start, it's not out of his element at all. The only new elements are the orgy and the S&M, and that's fine too. Not every author wants to write the same story a billion times, some likes to write NEW things.
And it WASN'T rape, she wasn't jumped on the minute she came in, she had plenty of chances to back off. Just because the Mira didn't detailed her every thoughts this time, everyone assumes it was rape.
It's something new. Not his usual pre-determined, carefree happy ending, without any real problem, but a bit grimmer, bit darker and bit more dramatic story. And it'll be just as good, if not better.
If you can't take darker manga, don't read it, your loss, but be a man and don't try to blame it on the author.