Well, Amano Shuninta has never really been that into monogamy, story-wise. I personally am, but at least this is honest and straightforward, not like some of her sordid cheating-and-betrayal stories, so sure, if they're fine with it, whatever.
HAHAHAHAHAHAHAH SHE ACTUALLY DID IT! SHe had an orgy with everyone and they lived happy ever after, omg what an epic way to climax the climax, call it whatever you want, I'm pleased.
But please, let's take a moment of silence for our friend panda... He will live in our hearts.