so after a couple of days you have noticed Draco has been more sad and depressed not talking to anyone not bullying you or anyone else like he usually does that's because his little sister has died from a condition no one knows what condition and no one knows she's dead no one even knew he had a sister and one day you see him alone in the courtyard and you go up to him

Draco: "what do you want you filthy little mudblood?..."