

Blue Exorcist: The Blue Night Saga
Ao no Exorcist: Yosuga-hen
Rin Okumura never really cared about learning the truth of his birth or his parents—unlike his twin brother Yukio. But Mephisto Pheles, a powerful time manipulator, has other plans. He gives Rin a key that sends him back 40 years to when his mother, Yuri Frederick Egin, was just a kid. With Mephisto's help, Rin travels through her childhood and teenage years as a trainee exorcist. During this journey, Rin meets Shirou Fujimoto, the man who would eventually become his and Yukio's adoptive father. As he watches Yuri and Shirou's lives unfold, Rin gets a front-row seat to Satan's first appearances—his actual biological father—and the nightmarish experiments happening in the True Cross Order's classified Section 13. Yuri's deep connection to Satan ends up being the key to understanding something huge: what really went down during the Blue Night, the most catastrophic event in exorcist history and the day Rin and Yukio were born.
Content compiled by AnimeList.moe from publicly available sources.


Blue Exorcist: The Blue Night Saga
Ao no Exorcist: Yosuga-hen
12
2025
Synopsis
Rin Okumura never really cared about learning the truth of his birth or his parents—unlike his twin brother Yukio. But Mephisto Pheles, a powerful time manipulator, has other plans. He gives Rin a key that sends him back 40 years to when his mother, Yuri Frederick Egin, was just a kid. With Mephisto's help, Rin travels through her childhood and teenage years as a trainee exorcist. During this journey, Rin meets Shirou Fujimoto, the man who would eventually become his and Yukio's adoptive father. As he watches Yuri and Shirou's lives unfold, Rin gets a front-row seat to Satan's first appearances—his actual biological father—and the nightmarish experiments happening in the True Cross Order's classified Section 13. Yuri's deep connection to Satan ends up being the key to understanding something huge: what really went down during the Blue Night, the most catastrophic event in exorcist history and the day Rin and Yukio were born.
Content compiled by AnimeList.moe from publicly available sources.
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Blue Exorcist: The Blue Night Saga
Ao no Exorcist: Yosuga-hen
Rin Okumura never really cared about learning the truth of his birth or his parents—unlike his twin brother Yukio. But Mephisto Pheles, a powerful time manipulator, has other plans. He gives Rin a key that sends him back 40 years to when his mother, Yuri Frederick Egin, was just a kid. With Mephisto's help, Rin travels through her childhood and teenage years as a trainee exorcist. During this journey, Rin meets Shirou Fujimoto, the man who would eventually become his and Yukio's adoptive father. As he watches Yuri and Shirou's lives unfold, Rin gets a front-row seat to Satan's first appearances—his actual biological father—and the nightmarish experiments happening in the True Cross Order's classified Section 13. Yuri's deep connection to Satan ends up being the key to understanding something huge: what really went down during the Blue Night, the most catastrophic event in exorcist history and the day Rin and Yukio were born.
Content compiled by AnimeList.moe from publicly available sources.
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Alternative Titles
Blue Exorcist: The Blue Night Saga
Ao no Exorcist: Yosuga-hen
青の祓魔師 終夜篇
Blue Exorcist Season 5