Rin and his Exorcist classmates are caught in a secret war against the forces of darkness.
Mephisto Pheles has freed his brother Amaimon fr.
One day a fateful argument with Father Fujimoto forces Rin to face a terrible truth - the blood of the demon lord Satan runs in Rin\'s veins Rin swears to defeat Satan, but doing that means entering the mysterious True Cross Academy and becoming an Exorcist himself.
Raised by Father Fujimoto, a famous exorcist, Rin Okumura never knew his real father.
Rin and his Exorcist classmates are caught in a secret war against the forces of darkness