Hello Zakaria,
Thank you for the game play video and the points you mentioned. Also, I'm glad to hear you think the story's interesting.
In regards to the text being cut off at the bottom, in different areas there's a scrollbar so you can read the rest of the text. It sounds like I need to change that, though, and just make it so all the text is on screen.
In regards to music, I've been thinking about adding it. I just haven't gotten around to making the music for the different areas, though.
In regards to a save system, I've looked into how to make one and I'm still not totally sure how to do that in Godot.