A Clash of Nightmares! The Fists of Leo Flare Up
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. Source: crunchyroll
Aired 04/02/2019EP 8 - A Clash of Nightmares! The Fists of Leo Flare Up
Saint Seiya Saintia Sho
The anime is set immediately after the main storyline's Sanctuary arc after the defeat of Gemini Saga from Masami Kurumada's original Saint Seiya manga, but before the Posieidon arc. However, whereas the original manga followed a boy named Seiya and other Saints who fight to protect the goddess Athena, the new series follows a female "Saintia" named Shō who fights evil deities to protect Athena.
(Source: Anime News Network)