"I'M NOT YOUR WEAPON; DEMON KING OR SAVIOR! I'M RIN OKUMURA! AND WHEN I'M DONE, I'M GOING TO BE THE BEST EXORCIST YOU EVER LAID YOUR EYES ON!" - Rin Okumura.
Rin Okumura (奥村燐 Okumura Rin) is the son of Satan and the elder, fraternal twin brother of Yukio Okumura. Studying as an Exwire at True Cross Academy, Rin desires to earn a Knight Meister and defeat his biological father.