Kiku Oshiromoto is a graduate from Cross Academy but has returned to the school at 22 years old in order to become a teacher's assistant. As Rido finished with Zero and Yuki, he returns to the promise Kiku's father made him when his family was having difficulties. After revealing that they are fiances, Rido keeps Kiku in his grasp. She must decide what will become of her future.

Michiru Takao decides to become an exorcist at True Cross Academy so that she can find answers to why her brother has been behaving so strangely. With the help of everyone, she learns that she isn't actually human and she has been living a lie the entire time. While aiding her classmates in their battles, she grows a strong connection with the demons.