It is not lol. The old free demo has the nsfw one. If you download the base file and not the nsfw one then you'll see the difference.
Like I said in this recent devlog, I removed the first NSFW scene from the game and separated it to prepare for future updates that I am currently working on.
For now the changes are the cursor and the icons in the chatroom, and the nsfw scene removed from the free base game.
If you paid for the latest nsfw build in the files atm then the 'extra' CGs is there along with the minor changes I added and you will gain access to future updates (you have to download the update once it comes.)