Does anyone know which illusion's games model this Dev use?

[FapForYourLife]

From game
Spin Around Sayla [HO_Works]
Spin Around Sayla Second [v1.1.3] [HO_Works]

I heard that dev use illusion model but don't know from which game and I kinda like it.
If you can tell which mods that dev use, I would be appreciated.
Thank!

 

[Faisallore]

Maybe artificial academy 3, idk. Looks so old and relevant