Memory is the ninth episode of the Ao no Exorcist anime. It first aired on June 12, 2011.
Mephisto Pheles reveals to the students that the ghoul attack was actually part of the Exwire exam and how they dealt with the threat will count as part of their evaluation. Yukio confronts Neuhaus about his reasons to force Rin to use his Demonic powers during the exam and he claims that all he did was under Mephisto's orders. However, it does not take much for Yukio to realize Neuhaus' real intentions.