The idea was really fun and it works, really nice job on that one, it also fit the theme.
A few notes to improve upon: the tutorial was way to quick, consider letting the user decide when he wants to read further.
The music was not the highlight, but that's okay :D
The font used, was a bit blurry, if you used UI Text, consider using TextmeshPro, it's part of unity and crystal clear text :D
Good job on the game :)