Ao no Exorcist: Yuki no Hate-hen

Demonic activity is rising around the world as the Illuminati continue their schemes, prompting the Vatican to move the Exorcist Certification Exam forward and place more fighters in the field. Famous exorcist Lewin “Lightning” Light arrives at True Cross Academy, where Bon Suguro, struggling with his own direction, finds a new purpose after Lightning unexpectedly accepts him as an apprentice.

Meanwhile, Rin and Yukio Okumura are sent to Aomori after Shura Kirigakure disappears. Their search leads into snowbound mountains and a decades-old contract tying Shura to an immortal demon. The mission exposes a past their teacher kept hidden while global pressure on the exorcists continues to rise. Saving Shura will require the brothers to break a promise designed to outlive the person trapped by it.