​In this thrilling episode, two rival families, the Kameyama and Otori, battle for supremacy at Otori Academy. However, a wave of violent crimes takes center stage, as female students fall victim to a mysterious figure wearing an iron mask. Senna becomes a victim of tentacles and is assaulted by a demonic presence, while the enigmatic man in the iron mask abruptly crosses paths with Mao. Despite her valiant attempts, Mao fails to harm him, but is saved by Hitomi Kameyama. Brace yourselves for the unfolding horrors that lie ahead, as this shocking tale takes a dark and twisted turn.​