Yuna arrives with Aria to a small town. In Babel, Mars send Sonia (the Highest Martian), The Crow and Miguel of the Hound (Silver Saints) after them. Miguel guides the bad gang to the town where Aria and Yuna are in a church. Aria is left hidden and Yuna goes to fight. Right when Sonia is about to kill Yuna, one martian arrives asking Sonia to go back to Babel for a meeting of Mars with all the Saints. It is revealed that she killed Soma's father. She leaves and the Crow is beating Soma and Yuna. Koga save them and help Yuna to deliver a fatal blow on Crow. In Babel: Yuna, Soma, Koga, Ryuho and Haruto are blamed for Santuary destruction and taking Athena apart. So all the Saints are looking for them.

The Bronze Saints reach the Fire Ruins where Sonia finally comes across the murderer of his father, Hornet Sonia. Souma engages in a giant battle with her but his anger continues to lose his own focus and is unable to hit her. The battle proves fruitless until Koga manages to convince him to control his emotions. This allows Souma to finally hurt Sonia for real and she escapes beaten. After stopping the ruins, Souma realizes that he cannot stay with the team until he has settled things with Sonia and departs on his own.

Yuna, Ryuuhou and Haruto are transported to an unknown dark place and eventually reach a door, which they touch and are all transported to a world of memories. Yuna is on her hometown with her childhood friend before the war, Ryuuhou is on his childhood on Palestra along with his then friend Lynx Mirapolos and Haruto faces his own brother Yoshitomi. All three realize the world they are in is an illusion created by the darkness in their hearts and are at first hesitant to battle, but manage to overcome the darkness and reach the Core of Darkness.

Koga arrives at the Gemini Temple. He and Ryuhou join forces in order to defeat Gemini Paradox. Despite their best efforts, the two of them are outclassed by the more experienced warrior, especially when her darker half comes out to fight. Incensed by Paradox's selfish nature, Ryuhou manages to awaken the Seventh Sense and pull out a desperate win at the last minute. Ryuhou and Kouga the head off to the Cancer Temple.

Souma and Sonia, who has been given the Scorpio Gold Cloth by Medea, engage in their long awaited final battle at the Scorpio Temple.

Kouga finally reaches Mars' location, determined to stop him. As the War God deflects his attacks and counterattacks, Eden arrives in time to save Kouga. Mars then reveals to the true story from the days when he was known as Ludwig, a normal human who sought revenge for the death of his beloved wife, Misha. He deflects Eden's attacks before removing his mask, revealing himself as a human no longer.

Aegir fails to defeat Genbu by himself and the Primary Pallasite Hyperion lends his own sword to assist him. Overwhelmed by the massive Cosmo flowing from the sword, the Gold Saint decides to forfeit his own life in an attempt to destroy it.

On their way to the palace, Koga and his friends meet Celeris, who fights to protect the refugees with the Equuleus Cloth, despite taking heed of the dreaded curse that befalls whoever dons it. They also meet Selene, a young girl who takes care of all the humans who hide underground who has not been frozen in time, and Eden, with something to protect, has to fight Thebe once again, while Subaru and Celeris encounter Hati and have a short battle with him.

Tokisada, the former Aquarius Gold Saint who was supposed to be defeated by Haruto at the End of Time, appears before him as a Secondary Pallasite at the second path, donning a Chronotector that enhances his time-control abilities. Haruto, Eden and Subaru have a hard time against him until Hyoga appears to battle him in their place.

After donning his New Gold Cloth, Seiya battles Titan, who questions his loyalty to Athena and the Sagittarius Saint reveals that his drive to follow Saori comes from his feelings for her. Knowing how he feels out of his devotion to Pallas, the Pallasite attacks with all his Cosmo, just to be wounded by Seiya's arrow. Pallas intervenes to protect Titan and Saori then reconciles with her, seeing how she has reformed after assuming her love for him. However, Europa appears and uses the curse laid on the goddesses to drain their Cosmo and pours it on Subaru, who is ...