The animation of the introduction was so nice in fact that i didn't even notice that the game had already started xD
May i suggest adding a phrase or something at the end of the introduction's animation that the player has to click in order to start?
As for the combat system, i like it, but if you can make it i have a suggestion that would make it feel way more smooth: have the mouse position vs the player be detected when you click, and use that for the attack's direction. This would allow you to move back, but still attack to the right without having to move forward a bit while doing to. There is a bit of personal preference in this last suggestion, but I've found games that do this to be easier to aim and control the character.
Nice game! Cool concept and very nice storytelling, smooth design overall :D