Beauty and the Armor- Alphonse x Reader

After your parents died, the Rockbell family had raised you like you were their own flesh and blood. Winry and you acted like sisters, but other than her you usually felt like no one could understand you.
One day Aunt Pinako got lost on the way to the next town to show off her top quality automail, and Winry and you decided to go search for her. Then you found the castle in the forest, and both of your lives changed forever.
(I might edit this description later...probably.)
Anywho, I've had this idea for a longer Alphonse x Reader story, and I can't get this idea out of my head. This is loosely based on Beauty and the Beast, except Edward is Beast, Winry is Belle, and you're just like "I AINT LEAVING WITHOUT WINRY!"
And of course Alphonse is his usual adorable armored self.
This might be on the weirder side, and I have no idea how long this will turn out, but it's been stuck in my head.
Hope you enjoy!