Blue Exorcist: Kyoto Saga follows after Episode 17 of the 2011 anime/Chapter 15 of the manga. In the aftermath of his fight with Amaimon, Rin finds his friends in a state of unease and distrust after learning he is a spawn of Satan. While Rin trains to control his blue flames, he and his friends are assigned to travel to the True Cross Academy’s Kyoto branch in order to investigate the attempted theft of the eyes of the Impure King.
Well, Blue Exorcist: Kyoto Saga assumes you’ve watched the 2011 series (or read the manga) up to the point it starts because it jumps you right into it with no recap. And it ignores everything after Episode 17. Which is good, because those anime-original episodes SUCKED!!! Anyway, the first episode was a fairly nice setup to the arc, even though the Kyoto Saga anime is mainly for those that were left burned by the 2011 anime, like myself, whom is hoping that Blue Exorcist can hopefully redeem itself from Hell.
Blue Exorcist: Kyoto Saga is licensed by Aniplex of America and is available to watch on Crunchyroll and Daisuki.