Amid the ongoing rivalry between the Kameyama and Otori families for control of the academy, unsettling incidents continue to disrupt campus life. Senna falls victim to a strange assault by otherworldly forces, while Mao encounters the rumored iron-masked figure and struggles in vain to fend him off. Hitomi Kameyama intervenes at the critical moment to pull her from harm. As fresh terrors surface, the academy’s hidden dangers grow more menacing for everyone involved.