Shoko cannot hide the shock knowing Kyoko was taken away instead of her as the evil god's host. As Shoko finds out the special position of Athena's handmaidens as well as bodyguards that only women can fill, she decides to become a Saintia herself from her desire to become stronger in order to rescue her sister. Saori requests the Silver Saint, Pavo Mayura, for Shoko's training, however - On the other hand, Milo and Aiolia at the Sanctuary were sensing the evil Goddess Eris' suspicious moves.

The underlings of the evil goddess, Malice Emony and Murder Phonos, plot to take Athena's head to offer it to Eris and raids Saori. Mii stands up against Emony who continues to call Saori an "incomplete god". Shoko's Cosmo flare up during the training with Mayura. Sensing Athena's danger from the Cloth's box, can Shoko ultimately save Saori?.

After the deadly battle, the Saints of the Sanctuary all swear their loyalty to Saori-Athena. Meanwhile, Eris, who was thought to have been sealed, had fused with her host, Kyoko, and multiplied her powers. Saori rises against Eris to protect Shoko, but receives the curse of the apple. The Gold Saints head to the Temple of Eris along with the Saintias to save Athena and to stop the evil god from scattering the Evil Seeds of war that fill people's hearts with hate. That's where Aiolia witnesses his own brother turning his fists against him.