So we're spoiler tagging things I guess? Might as well be safe.
This entire ending was pretty baffling to me, even though the season ending made it clear this is where it was going. I'm a Kuroneko fan, but I don't have any real problem with an incest end if it's done well. It just seemed terribly written here. Not nearly enough time/events were spent between "I'll do anything to get Kuroneko back" to "I'm rejecting you all because I have to be with my sister" for it to be remotely believable.
Also didn't help that the OVAs took a turn for the fantastical. Kuroneko showing up on the street at night because "their hearts were connected" or some crap, along with Kanako's confession/rejection were two of the big ones that had me shaking my head. These episodes were just full of junk that never would have fit in with the series proper, which was always pretty grounded and moving in a logical way. I was actually expecting the whole thing to be a dream sequence because of that.
Also didn't help that the OVAs took a turn for the fantastical. Kuroneko showing up on the street at night because "their hearts were connected" or some crap, along with Kanako's confession/rejection were two of the big ones that had me shaking my head. These episodes were just full of junk that never would have fit in with the series proper, which was always pretty grounded and moving in a logical way. I was actually expecting the whole thing to be a dream sequence because of that.