かつてのユリの言葉を思い出し、三角や長友たちを頼り、修道院で燐と雪男を育てるようになった獅郎。悪魔を見て怯える雪男には祓魔師になる道を示し、自身の力を制御できずにいる燐には料理を教え、やさしいことのために力を使えと諭す。やがて二人は中学生になるが、サタンに狙われ続けていた獅郎は日増しにサタンの声を耳にするようになる。そして、運命の日が近づき……。
Remembering Yuri's words, Shiro relies on Misumi, Nagatomo and the others as he begins raising Rin and Yukio at the monastery. To Yukio, frightened by demons, he guides on the path to becoming an exorcist. To Rin, unable to control his strength, he teaches how to cook and use his strength for kindness. Eventually, the twins become junior high school students, but Shiro, who Satan was constantly targeting, begins to hear Satan's voice more and more each day. And then, that fateful day arrives...
Après avoir assisté aux grands moments de la vie de père Fujimoto, Rin peut désormais prendre une décision.
Rin vê os últimos acontecimentos na vida de Shiro e tem que decidir o que fazer.
Rin conclude il suo viaggio nel passato... e ora deve prendere una decisione per il futuro.
Rin vuelve al pasado y revive el doloroso recuerdo de Satán poseyendo a Shiro.
Mit dem „Schlüssel des plötzlichen Verschwindens“ lässt Rin nun seine eigene Vergangenheit Revue passieren und findet endlich die Antworten, die er sucht. Und er erhält die Gelegenheit, Danke zu sagen.