"Where's the guide"
In game. Top right of your screen there's a book icon. Click it to open guide. There's also a full/more detailed guide on discord. The specific screenshots you saw are from love path, hinata dream. Click fantasize when going to sleep. Unlock dreamweaver item. I can't explain you in an itch comment all the steps, that's why I said check guide. Or join discord and ask in help channel that exists for this reason.