Episode list

Shiryu, Hyoga and Shun are about to jump into the hole leading to the Underworld, but Dohko stops them, warning them that only Specters will be able to reach that world alive. He also tells them that they must reach Arayashiki, known as the Eighth Sense. Shaka and Athena had reached this sense by being as close to death as possible, to reach the Underworld alive. Dohko and the Bronze Saints, thanks to their previous battles, awaken the Eighth Sense, and land in the Underworld. Seiya has made it as well, reaching the Eighth Sense beforehand and encounters Shun. Now they must find Saori and give her Cloth to her. Seiya and Shun reach the Acheron River, and see dead people who lived their lives in apathy and aren't allowed to cross the river. A boat comes with a Specter, Acheron Charon, who guides dead people across the river. He begins to fight the Saints, but offers them a ride in exchange for money. Shun offers Charon a golden pendant, something he has had since he was a baby. Even though Charon says it isn't enough, he gives them a ride. At the halfway point, Charon knocks Seiya off the boat where he is being dragged to the bottom by dead people who tried to swim across. Shun saves Seiya and he attacks, breaking through Charon's Rolling Oar defense. The Specter falls into the water, asking for help since only he knows the way to the other side. Shun helps him, but Charon attacks Seiya with Eddying Current Crusher. He then attacks Shun, but looks at his pure eyes, being aware of his pure heart and stops the attack, thinking he might end up in Elysium, a paradise for people chosen by the Gods. Thankful to Shun, Charon returns him his pendant and agrees to take him and Seiya to the other side, on the condition they settle the score. Charon explains the contents of the Underworld, consisting of 8 prisons, 3 valleys, 10 pits, and 4 spheres. Seiya and Charon continue their battle. Since Seiya has seen both of Charon's techniques, he is victorious, killing the Specter with his Meteor of Pegasus. Hyoga, Shiryu, Dohko and Kanon have also made it to the Underworld, but are in different parts of it. Seiya and Shun reach the First Prison, the Palace of Justice.

Seiya and Shun reach the First Prison and encounter Markino, a skeleton that leads them to Balrog Rene, who judges the dead and sends them to their appropriate hell. Markino is then killed by Rene, using his Fire Whip, because of him not being quiet. Rene proceeds by showing Seiya his past crimes during his life with Reincarnation. Seiya is shown childhood memories, and the opponents he has defeated. He then tries to explain his actions, but Rene ignores him and sends him to the First Valley of the Sixth Prison, where people who have use violence against others in their lives boil in a lake of boiling blood. Shun rescues him, however Rene notices something strange about Shun. Shun tries to justify the actions of humanity, but is sliced to pieces with the Fire Whip. Rene is then scolded by Hades for cutting his body. In panic, he searches for the body, but Rhadamanthys appears, pointing out it was an illusion. Seiya and Shun are fine, wondering what happened. Rene discovers who made the illusion, Gemini Kanon, who wanted Rene to lead him to Hades. Kanon then destroys Rene with no difficulty and confronts Rhadamanthys about why he defeated Aiolia, Mu and Milo so easily, because of a barrier at Hades' castle that lowered their strength to 1/10. Seiya and Shun arrive, but Kanon attacks them, reminding Shun to be stop being sentimental, in order to save the innocent. He then tells them to go find Athena. Rhadamanthys attacks Kanon, but he counters with the Imperial Satanic Illusion to control him and kill Hades. He is interrupted by Specters who tell Rhadamanthys that Pandora wants to see him. As the Judge leaves, Kanon destroys the lower Specters with Galaxian Explosion.

Seiya and Shun continue their trip through hell and they enter the second prison, where they face the legendary Cerberus and the Sphinx specter. They also find a legendary silver saint, Orufe, who tells them his story.

Orufe, Seiya and Shun continue their fight against Sphinx, and then they go directly to Hades home to face the god. Shiryiu and Hyoga join Kanon in their voyage through hell.

Orufe, Seiya and Shun arrive to Hades palace, but their attempt to reach the god is thwarted by the arrival of the three most powerful warriors in hell. Shiryu, Hyoga and Kanon face the guardian of the fourth prison.

Shun's body has been possessed by Hades, Seiya is sent to die in a frozen hell,Shiryiu and Hyoga try to reach the sixth prison and Kanon faces the three judges of hell by himself, until a new ally arrives.

Ikki faces the three judges of hell, until Hades, living in the body of his brother Shun, feels his cosmos and orders him to be taken to his presence. There Ikki will face his brother.

Shun's soul regains control oh his body, and gives Ikki the chance to stop him. Ikki has doubts since attacking would kill both Hades and Shun. The Harpy specter releases Seiya from his frozen tomb to take Athena's armor from him.

Athena appears before Hades, and begs him to stop the eclipse that would end life in earth, after refusing the two gods face each other, while Seiya continues his battle in the frozen hell.

Athena and Hades have vanished to the Elysian Fields and an impenetrable wall prevents the saints from following them. The only way to break it is getting sunlight into hell itself.

Five Golden saints try to generate sunlight with their power in order to break the wall that leads to Elysium, but they fail to do it and they release they need the power of the twelve golden armors.

The seven death Gold Saints come back to life and help their five teammates to use their cosmos to create sunlight and break the wall protecting the Elysium. The last judge of hell tries to stop them.