Blue Exorcist (2011) : 5x8

Shiemi cheers up after Rin suddenly appears before her. After hearing Shiemi's voice, Rin regains consciousness and heads back to the past to see the events all the way through. In the past, Satan's possessed body progressively deteriorates, beginning to break down and go out of control. The Blue Night begins at last. As powerful clergy around the world are engulfed in blue flames one after another, the Myodha Sect in Kyoto, the Three Sages in the Vatican, Shiro and the Knights in the Japan Branch struggle against the dire situation.