Real Harem Manga
Manga
I can see that you’re only interested in the exceptionally rare. Collection of manga with actual harem endings or manga where the harem is official anytime before the very end. Additions welcome. 2 girls, twins, split personalities are also fine.
Possible Additions:
Mato Seihei no Slave
Monster Musume no Iru Nichijou
Parallel Paradise
Possible Additions:
Mato Seihei no Slave
Monster Musume no Iru Nichijou
Parallel Paradise
Manga, 2020