Posting Hogwarts Short Videos, Voldemort Gets Publicly Humiliated

Zhang Dong transmigrates to Hogwarts. As he's weighing whether to cling to the protagonist or make a run for it, he discovers he can scroll through short videos online, and project them across all of Hogwarts! What's more, he gets rewards whenever the plot changes! And so:

Sirius Black: Did you all see that? I was framed!

Hermione: Honestly, you two. Could you be any less useful?

Snape: Harry! Don't look at me like that! Fine, ten points to Gryffindor!

Fudge: Everyone, stay calm. There's no way the Dark Lord could come back!

Everyone: Then can you explain who that noseless guy behind you is?

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.