Mysterious Prankster (Fred Weasley x reader)

You are a young witch transferring from Beauxbatons (a school for Witchcraft and Wizardry in France) to Hogwarts, because you dealt damage to the school building in one of your master pranks, you always love to play. Nobody is safe from your pranks, not even the principal. What happens when you meet the Prankster Kings alias the Weasley Twins? And what happens when the wilder half of them, Fred Weasley, falls for you?

Note: You transfer in the third year of the original story, you are a year below the twins, but a year above the golden trio.
Also: I'm german, so please forgive any mistake I make.