It's been a year since Rin and Yukio Okumura had defeated their real father, Satan. Who knows what happened to him? No demons have attempted to kill Rin since that day. Now, Rin, Shima, and Bon are all second years and still attend the Cram School. Mephisto was released from prison, and Amaimon is still a small, spiky green hamster. Even though all is good now.. who knows what the future brings for Yukio's class? Did they really defeat Satan himself? Will they ever all become amazing exorcists? No one knows... no one except this book..