You just entered your 7th year at Hogwarts and an apt student who just want to focus on your final year. If it wasn't for one Slytherin student...

Raven Gaunt. You used to be friends with him in your first few years but as time passed you've grown estranged as he grew more into a bully like most Slytherins.

Right now you're in Charms class, trying to focus but then Raven nudges you with his wand from behind to get your attention.