I'm sorry I didn't play it for a very long time, I didn't understand the controls and got stuck soon (please consider to include a small gameplay tuto, even if it's just 1 picture with the list of controls). In addition the mouse sensitivity was way too high for me, a short move was turning the camera too much (I suffer of motion sickness, so I couldn't stand it here). It could be due to the fact that I chose a low resolution (1280x960): in Unity the mouse moves are sometimes impacted by that. Also I found that the texts in the intro were scrolling too fast, I didn't have the time to read and translate in my head (I'm not English) and to finally understand. I read the most important words (about the Graal etc), so I got it globally. Well I think it was all too fast for me, maybe you're drinking too much coffee and are under adrenaline all day? lol
In the end you could think I didn't like your game, but you would be mistaken. I actually could see a lot of positive sides, and there is a lot of potential. First of all it is inspired by some other games that I love, such as Shadow of the Colossus, and Zelda (with the fairy following us). I also think the gameplay could work well with some improvement, and overall it looks quite cool with this cell-shaded style! Thanks for making it, you can be proud of the result. I'm curious to see what you're going to create next!