You are now part of a cult. Your cult has been formed because you and your followers were one of the few, yet far too many, that have discovered a portal that has suddenly opened in your world.
This portal leads to the forbidden dimension of Ani'moe, where a restless god of lust and greed constantly summons new waifus to add to his collection. Because there are countless of them, he does not care if you abduct one or two… or dozens, or hundreds.
Back in your world you realize that these waifus make for great cleaning personell, but they can only stay materialized so long as they are not forgotten. On the other hand, however, the more of an emotional impact the creature has the more powerful it becomes.
At first, this meant that only the most beautiful creatures were considered useful, but then they were discovered: The rare "Abominations". "Failed" summonings of great horror. True horror being the most powerful emotion there is, your cult quickly started specializing on exclusively collecting those abominations to strengthen your ranks. But so do your rivals. They all hope to achieve the same goal: To summon a creature so horrifying that every rival cannot help but acknowledge their superiority. Only those abominations can obtain true immortality and the cult that found it would likely win the war.
Enter the portal, go to the fields of summoning and start collecting.
https://www.obormot.net/demos/these-waifus-do-not-exist
It will all start to make sense soon.