World's End Harem was too hentai to be a proper anime and too anime to be a proper hentai. It tried to be good at two things but failed miserably in both, and you'd be better off doing anything else with your time besides watching this.
World's End Harem Episode 11 ensured that no one was coming back for a season 2 even if there was one. This was among the most useless and unwatchable anime ever.
World's End Harem Episode 10 wasn't the worst episode of the show, but that's not a high bar to clear. There were some plot reveals that everyone saw coming, and no one was surprised.
World's End Harem Episode 8 was good for what it was, a revenge story with some plot mixed in. The show is going nowhere fast, which is starting to be a concern.