The whole episode is basically just that orgy scene that we've seen on the previews. After that, you get the most unsurprising explanation/reveal to what has been going on and why, which most likely everyone have already figured out so it's not a shocker. Then you get "goodbye stories" for every main girl, which are like "feel good moments". No specific ending with any of the girls, no choosing your love interest to proceed with for the satisfying end, just abrupt choice that is supposed to be cliffhanger for the Season 3, which then obviously leads "to be continued in Season 3" message, and poof, Season 2 is completed. So as predicted, this is the goodbyes for the old cast with one last big orgy and 5 minutes of story telling, and in Season 3 there will be a new cast and new story.