Hi there!
Thanks for checking out the demo and leaving feedback! ^^
Right now, dialogue skip is set to fast-forward through text you've already read on that run so key story beats and choices aren't accidentally missed. If you load your save from the main menu, it'll let you zip right through what you've seen!
That said, if you reset the demo lockout, the save data resets with it, which I totally get can be annoying if you're trying to jump right back in!
Don't worry though! The full game will 100% have an option toggle so you can skip unseen text whenever you want. Even if you haven't played through it before! Definitely want to make sure replaying revised sections feels smooth when the full release drops.
Really appreciate you sharing your thoughts! Hope you enjoy the rest of the demo and have a beautiful day! <3