If you download daz studio and grabbed older cheap/free genesis models they offer daily (even some come with daz studio), daz to unity bridge, setup sliders in ui, getcomponent skinrenderer hookup to blendshapes; hookup ik, add xr toolkit or one of your interaction frameworks, drop a collider on each bone.

Then you'll get a basic version of this.

Then you can add spcrjoint dynamics or magicaclothe/obi cloth, puppetmaster or ragdoll animator 2, finalik. Other jiggle physics such as boing kit.

Now you got this but custom, potentially with your own animations and custom interactions.

I did just that with genesis 9, but I added a lot of morphs, build base mesh and dynamically include what the user wants, to reduce vram. This basic setup takes less than a days work.

If you already got your models, hit up github and unity discussions to make this.

There is nothing here other than ik setup on a model with blendshapes. You can get daz essential shape kit to include more morphs and genitalia for le$$ using the free tokens on a new signup.

This isn't what the creator description makes it out to be.