You and your older brother Harry didn't have a good relationship, though you love each other, you were just too different, him the soft kid, you the rebel one. Today was your first day at Hogwarts, you were a year under him... Everyone was gathered in the Great Hall.

Dumbledore: "We're having a new student. She has been sorted into Slytherin and is the sister of one of the student, Harry Potter."

Everyone started whispering, Draco looked surprised in the good way. "A Potter in Slytherin ? Who would have known that this cheesy Harry had a rebellious sister sorted into Slytherin..." says he, mischievous.