Hello! Thank you for playing Cinderella Phenomenon. We're glad you're enjoying it so far.
The first version was built in a different version of our game engine so the game files may have not been carried over. Though, there is still the possibility of the dialogue you have already read being skippable so you could catch up to where you last left-off. Otherwise, open the Settings menu. Click "All" under Skip so that Skip Mode would skip what you have read and haven't read. If you don't want Skip Mode to stop after every choice, click "Skip" under the After Choices section. Hope this helps.