Blue exorcist, volume 14, paperback/kazue kato

Raised by Father Fujimoto, a famous exorcist, Rin Okumura never knew his real father.

One day a fateful argument with Father Fujimoto forces Rin to face a terrible truth - the blood of the demon lord Satan runs in Rins veinsRin swears to defeat Satan, but doing that means entering the mysterious True Cross Academy and becoming an exorcist himself.

Trapped by Professor Gedoin in the hellish prison beneath Dream Town Inari, the Exwires must fight to survive and rescue Izumo.

The more they learn about Professor Gedoins plans, the more they realize the horror they face.

Each will need to rely on their own strength, and each other, like never before.

But Izumo is determined to meet her fate on her own and save her sister, even if it means her destructionWhat will Rin and his friends lose in order to win?.