* Based on Katou Kazue's dark fantasy manga by the same name, serialised in Jump Square.

In the present day, Lucifer's attack on the Earth is underway. But Rin has his own journey to take to learn why he and his brother were born to Satan and a human woman. With the utterly untrustworthy Mephisto Pheles as his guide, Rin travels decades into the past, where he'll witness the long-hidden story of his mother, Yuri Egin.

Source: ANN

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Prequel: Ao no Exorcist: Yuki no Hate Hen