Blue Exorcist

青の祓魔師

Rin Okumura, a rough-edged teenager raised by the exorcist priest Shiro Fujimoto, learns he is one of two sons Satan fathered through a human woman — and that the blue flames he can't control are his inheritance. When Satan kills Shiro during a forced possession, Rin unsheathes the sealed demon sword Kurikara to unlock his full power and enrolls at True Cross Academy, where his twin brother Yukio already teaches as a certified exorcist. Rin's goal: become an exorcist strong enough to defeat Satan himself.