Armed with special weapons, the Esquires take part in a widespread crusade to destroy all demons, even the good ones. They start questioning the True Cross Order's actions. Yukio is doing it because Ernst claimed it will help destroy Gehenna, the demon world, meaning both Yukio and Rin would be human again. Rin is arrested, as Ernst plans to use him as a living sacrifice to open the Gehenna Gate. Yukio attempts to intervene, but once their friends reach them, they find that Yukio had demonic powers, which he did not know he had, have also awakened.