Well, if the game really is around 20 chapters, we're still just around the 35% mark, so we're not even halfway.
I felt it just became a big "fuckfest" after Eric came home/or Died. Some hot scenes, but the story had stagnated. I also got a overdose on Arthur/Tyrone content... I was there for "good" Jessica, sadly she was moe or less forgotten past a couple of cute scenes, (or threesomes if she was Bad). I think ORS had already started to brew in EvaKiss mind at that point, she seemed to be in a hurry to close the show.