Kuniko, Kunihito and Momoko go after Mikuni, who is about to make herself successor of Atlas. Kunihito distracts the guards with gunfire while the other two head in Mikuni's direction. Momoko fights off Sayoko, who attempts to stop them from reaching her mistress, leaving Kuniko to chase after the girl. Kuniko reaches Mikuni and tells her that she can be the successor, but all she wants is to activate the Zeus defense AI, but Sayoko knocks Kuniko down and tells Mikuni to keep moving. Mikuni reaches Ryoko and is told to present the three blade seals to her, though the girl have doubts due to Kuniko's explanation. However, Mikuni is told by Ryoko that she can only be successor if she gets rid of Sayoko. Even though Mikuni doesn't want to, Sayoko sacrifices herself by jumping to her death in order to make her the successor. When Mikuni and Sayoko enter the ceremonial hall, Kuniko grabs Mikuni with her and tells her that all she needs is to speak with Zeus. Upon interacting with a weird device which is used to activate Zeus, Kuniko realizes that Zeus cannot be controlled as she's not the successor. Ryoko reveals herself to be Zeus' avatar, and she easily beats down Kuniko. Despite Kuniko's pleas, Mikuni pushes ahead to destroy the world to avenge Mi-ko's death. When Kuniko tells Ryoko she will stop them, Kunihito appears, pointing his weapon at her.
Kuniko retourne à Atlas pour persuader Mikuni de la laisser utiliser Zeus, seul ordinateur capable d'arrêter l'incontrôlable Medusa. Sans cette intervention, le monde pourrait bien vivre ses derniers instants. Mais Ryôko se met en travers de son chemin...
ミーコへの復讐を果たすため、アトラスの後継者になる意志を固めた美邦は、アトラスへの階段を登っていく。
暴走したメデューサは二酸化炭素を排出する人類を滅亡させるべく、世界各国の軍事ネットワークに侵入する。
香凜はメデューサを止めるべく手を尽くすが、その懸命な努力ももはや限界を迎えつつあった。
一方國子もメデューサを止めるためアトラスへの階段を登る。そこで待ち受けていたものは……。
Mikuni, que ha decidido convertirse en la sucesora de Atlas, sube las escaleras hacia Atlas para vengarse de Miko. La fugitiva Medusa invade las redes militares de todo el mundo para destruir a los humanos que emiten dióxido de carbono. Karin hace todo lo posible para detener a Medusa, pero su arduo trabajo está llegando al límite. Mientras tanto, Kuniko también sube las escaleras a Atlas para detener a Medusa. ¿Qué estaba esperando allí ...
