Ep. 10: Reiji Shiratori regresa a la Academia True Cross y se encuentra con Rin Okumura tras un accidente.

10

It is the first day Reiji Shiratori goes to school after what happened at the first two episode. He doesn't remember what happened but people says he is like another person after that accident. As he walks into True Cross Academy, he appreciates the historical schoolhouse and elegant students. He also walks pass the exwires and runs into Rin. Rin scolds Reiji and tells him to be careful. Reiji apologises and remember Rin partly. Rin also recognises him and asks if he has recovered. Reiji tells him he has and Rin tells him not to bring troubles to others anymore. Rin walks away and Reiji is surprised that True Cross Academy has such rude student. Then, he is trying to remember who Rin is and when he finally does, he is possessed by Astaroth again. (Source: Ao no Exorcist Wiki)