RKI-035 - AV Avengers: 24-Hour Harem Party with 100 Top-Tier Goddesses

It's more of an orgy than a harem. If you're expecting a harem scenario with one man and multiple women, you'll be disappointed. (At most, it's a reverse 3P with one man and two women; there's almost no scenario where a group of women swarms a single man.) Also, it's not from a first-person perspective; it just feels like a collection of multi-person scenes.