I'm looking for a Harry Potter fanfiction I read a little while ago.
In it, the main character is Sirius's daughter, but doesn't know who her father is and her mother is dead, so she lives with the Malfoys. I'm pretty sure she is French or went to Beauxbatons before, but goes to Hogwarts now and went last year.
Also the story starts off with her bumping into Lupin at the train station and she sees Sirius as a dog, but doesn't know that it's her father. Also she is wearing Muggle clothes at the time, like a maroon skirt or something. Sorry this is so random, lol, but please help me find it!