I like to think that there's really a happy ending; Kazuya goes back in time yet again, kills Izuya first (maybe a rape in there), rapes Anna, falcon punches her so she miscarries, crushes mad puss, becomes awesome again, dies fulfilled.
What a fucking journey. I'm a sucker for time travel plots with alternate time lines and other such fuckery so this was a, fucked, but interesting journey. Kazuya deserved death and Izumi will get better.
I still don't know if the true reality was the one where he raped her or the one where he didn't and she got married, it was a twisted ass manga but that's just how it is sometimes.
Real fun read. Really wish he just turn over a new leaf and gets married with the tomboy girl though. The first chapter makes me empathize with him because it hit close to home, but he went all rapey and shit and not even doing a very good job as the villain. Huge mixed feelings vibe. I like the reincarnation / time travelling stuff though