I cavort with Succubi and propagate their lewdness. I only tell you this for you are just as implicit as I in this sin. I have seen Paradise Lost Sister and you will not be casting the first stone!
Not a LN reader but I did skim the ending epilogue when I heard it ended:
Seriously though I can't imagine what they might have filled the other 7 volumes with really. This might be a good spot to end the manga financially speaking.
tfw when the asshole next to you pulls a SSR Summer Elf and he just won't shut up about the event boss being too easy. Also, I would have gone with Dolphkaiser, gets the point across and sounds vaguely dictatory.