Blue Exorcist: Kyoto Saga

The left eye of the Impure King, a demon defeated and sealed away centuries ago, has been stolen from the True Cross Order's vaults by exorcists working against their own organization. The trail leads to Kyoto, where the suspects are members of the very families that have guarded the sealed eye for generations — including the relatives of Rin and Yukio's classmates, Bon and Konekomaru. The cour follows the squad south on assignment, the awkward arithmetic of Rin's classmates learning his father was Satan, and the increasingly hard choice of which side of his bloodline Rin is willing to fight on.