Super Saiyan Defence Against the Dark Arts

After Voldemort's return, Fudge made it clear he wasn't on Dumbledore's side. Foreseeing Fudge's scheme, Dumbledore hired a new Defence against the Dark Arts teacher, and ends up choosing a strange one out of desperation: Goku. Goku can deal with aliens, demons, monsters, but now for his ultimate challenge: dealing with a teaching job, and not getting fired by the corrupt Umbridge.