In light of the recent incidents, Mephisto is dismissed from his post as director, with the Order's Supreme Advisors ousted as well. New appointments for Pope and Preceptor of the Japan Branch are revealed.
The Exorcism Cram School students are having a ball with Shima's birthday-based fortune-telling. When they discover that Izumo's birthday is coming up, they hit upon the idea of throwing her a surprise party.
The class investigates ghost sightings at an amusement park. Rin and Shiemi find the ghost of a child that turns things into a game of tag. Separated from Shiemi, Rin is confronted by Amaimon, King of Earth.
After the excitement of being promoted to ExWire, Rin is soon disgusted with his load of homework. Meanwhile, the familiar of the Knights of the True Cross has gone berserk, and Yukio is summoned to deal with the crisis.
Crushed by her failure to save her best friend, Izumo lashes out at Suguro. Their bickering escalates until the whole class is involved, and they're all sent to detention, where the students are suddenly attacked by the ghoul Rin fought the day before.
To overcome her shyness, Shiemi secretly vows to make friends, but she's foiled by her klutziness. After displaying her tamer skills in class, she finally asks Izumo to be her friend. Soon after, the Exorcist Cram School holds a boot camp.
The biggest headache of Rin's school life is his daily meals. On Yukio's advice, Rin starts cooking in the dorm kitchen, preparing lunch the night before. But in the morning, all the food has vanished.
When Yukio takes on a case, Rin tags along with him to the Exorcism Supply Shop. There he meets Shiemi, a girl with ailing legs, tending to her garden. Yukio finds demonic traces in Shiemi's legs and speculates that the garden is the cause.
Vowing to become an exorcist, Rin is taken to True Cross Academy by the mysterious Mephisto, a friend of his late father. At Exorcist Cram School, he warns Rin to "keep that you're the son of Satan confidential."
Rin is thrown into turmoil when Shiro tells him that he's the son of Satan. Warning him that he must never draw it, Shiro gives Rin the Koma Sword and hides him in the monastery basement. Outside, a fierce battle begins.
Rin Okumura begins to worry about his future as his twin brother Yukio starts school at the prestigious True Cross Academy. Sent to a job interview by his foster father, Shiro, Rin encounters a demon-like creature causing havoc in the store.