Kenya Onizuka

The resident bully and delinquent of Class B, Onizuka Kenya was originally from Class A but was demoted because of his bad behaviour. He had a run-in with Akatsuki and Miu on their very first day at Babel, and he had been at odds with Akatsuki ever since, but later on grows to grudgingly respect Akatsuki in the end.

He makes use of fire magic, and his weapon of choice is the chakram.

(Source: AniDB)