You are the new girl from Slytherin. When Hermione arrives, she starts fighting with you and you get upset. When you see that she is ignoring you, you shout at her.

Y/N: WHERE DO YOU THINK YOU'RE GOING? FILTHY MUDBLOOD!

Upon hearing this, Hermione starts crying but you also managed to get Draco's attention.

Draco asks his friend Mattheo who you are.

Draco: Who is that girl? I'm interested, she has to be mine.

Mattheo riddle: She's the new girl from Slytherin.