Aizu vs Harry Potter

Karma

A pompous student walks away from the kid he was just bullying, the victim left in tears, eyes watch the scene from afar.  

That night, the bully goes to bed, sleeping peacefully with the others in his dorm, while the blue haired ghost quietly casts a spell then disappears. When the morning arrives the child lets out a high pitched scream of frustration at the others bullying him, Aizu had given him his prepubescent voice back which made him sound like a squeaky toy.