Saint Seiya Omega (聖闘士星矢Ω（セイントセイヤオメガ) Seinto Seiya Omega, stylized as Saint Seiya Ω) is an anime series produced by Toei Animation. It is a continuation of the Saint Seiya anime series written and illustrated by Masami Kurumada , produced in commemoration of the 25th anniversary of the franchise.
Omega takes place 25 years after the Holy Wars of the 20th century . The goddess Athena is still on Earth after reincarnating to continue her duty of protecting peace against several antagonistic deities. Athena and a new generation of Saints prepare to face new threats that lurks in this new era, in which Pegasus Seiya , the protagonist of Kurumada's original manga, is revered as a Saint of legend and one of Athena's Gold Saints.
In February 2012, it was announced that the Omega animated series would be adapted to manga form, and it started serialization on March 26, 2013 in Kadokawa Shoten's Kerokero Ace magazine. The comic book contains the arcs of the first season and it also adapted the second season.
Saint Seiya Omega consists of 2 seasons totalling in 97 episodes.
The first part of the series is the "Mars Saga" (マルス編 Marusu Hen), introducing the new Pegasus Saint Koga and his friends Dragon Ryuhou, Lionet Souma, Wolf Haruto, Aquila Yuna, Orion Eden, and Aria and the beginning of their fight against the God of War Mars in his quest to capture Aria to become the new Athena.
The second part of the first season is the "Zodiac Temples Saga" (十二宮編 Jūnikyū Hen), featuring Koga and his friends fight against the many Gold Saints who have aligned themselves with Mars in their fight to save Athena before it is too late.
The second season begins the "New Cloth Saga" (新生聖衣（ニュークロス）編 Nyū Kurosu Hen), introducing Athena's new enemy Pallas and her Pallasite warriors, a new ally in the Steel Saint Subaru, and new powers with their stronger New Cloths.
The second half of season 2 comprises the "Omega Awakens Saga" (Ω覚醒編 Omega Kakusei Hen?), where Athena and her many Saints take their war with Pallas to her stronghold Pallasvelda, where Pallas's elite Pallasites begin to conspire against her.