Prologue

Dohko and Shion

Aroon

Tenma

Friend

Hades' Sword

Hades Awakening

Hades' Castle

Specters

Barrier

Suikyo

Warmth

The Water of Crateris

Izo and Ox

Bracelet of Flowers

The Temple of the Moon

As Long as There is Love

Lascoumoune

Immortal Bird

The door to Time and Space

The Birth of Athena

The Pope's Dagger

To Athena's side

The enemy is inside the Sanctuary

Crystal Wall

Tears of Blood

The Guidance of Athena

Deadly combat in the Temple of the White Ram

Sulsho

Ice Spears

The One Winged Fallen Angel

The Labyrinth of Gemini

Premonition of a Deadly Battle

Deadly Fight at Gemini

Gemini Abel

Cain and Abel

Deathtoll, the Coffin Maker

Omerta, the Coffin of Silence

The Sacrifice of Maou Ken

The Warmth of that Day

Moving on

For That Day...

Star Point of Resuscitation

Leo Kaiser

Fist of Light

The Mischief of the Gods

The Labyrinth of the Gods

The Compassion of the Warrior

Burning Friendship

The Gate of Death

The Great Light

Dragon and Swan

Dragon and Tiger, Mentor and Disciple

The Evil Temple

The 13th Gold Saint

My Friend

Tenbu Hourin

A-Un, the Beginning and the End

Recklessness

Divine's Cosmo

A Song for a Friend

Flag of Revolution

Deadly Battle in the Underworld

Syabadabadaa

Funeral

Atrocity at Cancer

Peach Bomber

Messenger

The Oath of the Goddess

The Space-Time Rift

Proof as a Leo

Samael's Poison

Mystoria

Freezing Aura vs Freezing Aura

Inheritor of Aquarius

Preliminary Tremor to Destruction

Shiryu's Vain Dream of Prosperity

Écarlate of the Scorpio Temple

Golden Blood

The Dragon's Chosen One

The Arrows of the Sagittarius Temple

The Legend of the Centaur

Athena's Arrow

Hypnotherapia

The Moment of Resurrection

Odysseus' Resurrection

Order of Awakening

Past Injuries

Two Minds, One Body

Born from the Troubled Constellation

Regeneration from the Darkness

Beautiful

Lion-Heart

Corleone's Fruit

Asclepius' Wand

Inertia

After the Dream

The Sword of Chrysos

The Pit of Tartarus

In 1990 (previously 1986), in Elysion; the five Bronze Saints Seiya, Hyōga, Shun, Shiryū and Ikki, having wreaked havoc in the Underworld's army and succeeding in resurrecting the God Cloths, engage the god Hades in a final duel to the death. 
During the battle, Hades remembers that he has seen Seiya's face before and comes to the conclusion that he faced him before. He thus starts reminiscing about his previous host body, and the story starts 247 years prior, in the 18th century. 
The protagonist, the Pegasus Saint of this era, is an orphan who is best friends with a boy named Alone, the host of Hades. Former Bronze Saints Dohko and Sion, two prominent characters in Kurumada's original manga as the sole survivors of the holy war of that century, have just been promoted to Gold Saints and eventually the two duos meet.
 
Note: The chapter count includes 118 regular chapters, 2 special chapters included in volume 10, and a prologue.