Blue Exorcist: The Blue Night Saga

Rin Okumura has never been eager to dig into the mysteries of his birth the way his twin brother, Yukio, has. That changes when Mephisto Pheles, the self-proclaimed master of time, hands Rin a key that sends him 40 years into the past—back to when his late mother, Yuri Frederick Egin, was still a child. Under Mephisto’s direction, Rin moves through pivotal moments of Yuri’s youth and her later days as an exorcist-in-training.

Along the way, Yuri crosses paths with Shirou Fujimoto, the man who will one day raise Rin and Yukio. Watching their lives unfold, Rin also sees the earliest signs of Satan’s influence and the grim reality hidden within the True Cross Order’s Section 13. As Yuri’s unusual bond with Satan comes into focus, Rin is drawn toward the truth behind the Blue Night—the darkest tragedy in exorcist history and the night he and Yukio were born.