Episode.G acts as a prequel to Kurumada's work and it is set seven years before the events of the first manga, in a fictional universe where the Greek gods cyclically reincarnate into the world to wage war on each other for dominance.
The protagonists of the story are the Gold Saints, an elite group of twelve warriors devoted to the goddess Athena, whose duty is to protect the Earth from evil and maintain peace and justice.
Although Athena's Saints are only human, their use of Cosmo (小宇宙(コスモ), Kosumo) – the energy of the Big Bang that remains inside every being – gives them superhuman strength and allows them to perform formidable feats.
[14] His fierce personality, Cosmo and battle skills attract the attention of Pontos, who acknowledges him as a potential menace to his plans,[9] and Hyperion, whom he encounters during the Titan's first invasion of Sanctuary.
At one point, Aiolia is assigned to protect Shaka while the Virgo Saint enters a deep meditation to banish the evil monsters that the Titans' presence on Earth had called forth.
Overwhelmed by the Titan's power, the memory of his brother offers Aiolia the encouragement and strength he needed to unleash the "Photon Burst", an attack Aiolos had once advised him to never use.
[18] Kronos comes out of the fight with no idea of who he is and the other Titans, believing this is due to Aiolia's attack,[19] lay down a plan to lure the Saint into the Time Labyrinth to restore their King's memory.
[15] His character was first created by Masami Kurumada, but Okada adopts the colour scheme present in the Saint Seiya anime, switching Mu's original long blond hair[28] to lilac.
After Kanon confronts him about this and reveals to him his dark intentions of taking over Sanctuary, Saga declares his brother to be pure evil and locks him in Cape Sounion, in a watery prison designed to contain Athena's enemies.
His fighting techniques are "Another Dimension" (異界次元(アナザー・ディメンション), Anazā Dimenshon), "Galaxian Explosion" (銀河爆砕(ギャラクシアン・エクスプロージョン), Gyarakushian Ekusupurōjon), and "Illusion Demon Emperor's Fist" (幻朧魔皇拳, Genrōmaōken), which only the Pope can use.
[10] Aiolia sees him as meddlesome and arrogant then,[9] and it is not until he is assigned the task of protecting the Virgo Saint while Shaka enters a deep meditation to cleanse the world of the evil influence of the Titans[47] and risks his life to keep Dark Lightning Koios at bay that the two start to become friends.
[35] Athena charged him with the secret mission to keep watch over a sealed evil and so, for the past 236 years, he has never left his post at the Five Old Peaks in Rozan, China,[49] not even to answer the Pope's summon to an urgent meeting, the "Crusos Sunagein" (黄金結合(クリューソス・シュナゲイン), Kuryūsosu Shunagein, Golden Assembly).
[57] Accompanied by a young Aiolia, he visited Egypt on orders to investigate the recently exposed tomb of the Sun God Apophis, from which a suspicious Cosmo emanated.
In Episode.G, Shura is a very loyal Gold Saint, but when he uncovers the truth about Aiolos's innocence and confronts the false Pope about it, he falls under the effect of Saga's "Illusion Demon Emperor's Fist", a technique that controls the mind of its victim.
They are: "Diamond Dust" (極小氷晶(ダイヤモンド・ダスト), Daiyamondo Dasuto), "Koltso" (氷輪(カリツオ), Karitsuo, Ring), "Freezing Coffin" (氷結唐櫃(フリージング・コフィン), Furīzingu Kofin), and "Aurora Execution" (極光処刑(オーロラ・エクスキューション), Ōrora Ekusukyūshon).
She first appears after Aiolia's match against Hyperion and saves the injured Gold Saint and Lithos from soldiers who had stayed behind with her "Eagle Toe Flash" (鷲星閃光(イーグル・トゥ・フラッシユ), Īguru Tō Furasshu) attack.
After having half of his body turned to stone while protecting Retsu, he uses his attack, "Tritos Spharaghisma" (三界封印(トリトス・スプラギスマ), Toritosu Supuragisuma, Seal of Past, Present and Future existences), in hopes of weakening the gorgon.
He appears accompanied by Lynx Retsu and the archaeologist Miko Hasegawa, and is seen destroying a monster made out of the souls of the dead who no longer had a body to return to that had been brought back to Earth by Kronos's power with his special technique, the "Mavrou Trypa" (マーブル・トリパー, Māburu Toripā, Black Hole).
With the help of Triangle Noesis's spirit, Retsu manages to defeat the gorgon and avenge his master with his special attack, "Fissure Hurricane" (裂爪疾風, Ressō Shippū).
Unlike the rest of his siblings, the divine weapon gifted to him by Gaia, the scythe-like Soma called "Megas Drepanon", was sealed in a room beneath the statue of Athena in Sanctuary.
[26] His special fighting techniques include: the "Teleos Oracle" (絶対神託(テレオス・オラクル), Tereosu Orakuru, Perfect Prophecy), the "Khaos Hyetos" (渾沌豪雨(カオス・ヒュエトス), Kaosu Hyuetosu, Rain of Chaos), the "Phainomenon Arkhein" (現象支配(パイノメノン・アルケイン), Painomenon Arukein, Phenomenon Control), and the "Dark Rumbling" (闇乃鳴動, Yami no Meidō).
He controls a giant hourglass that regulates time, the "Adamas Psammos" (金剛石乃砂(アダマス・プサンモス), Adamasu Pusanmosu, Diamond Sands),[62] and has three guardian planets that usually take the form of three long locks of hair.
She joins her sisters when they rush to Sanctuary to defend Kronos from Leo Aiolia’s attacks,[19] but later refrains from battling against the Gold Saints in the Time Labyrinth at Koios’s request.
As a result, Zeus left Prometheus chained at the top of the Caucasus mountain and condemned him to eternal suffering as an eagle repeatedly ate his regenerating liver.
The Giants (ギガス兵神, Gigasu Hyōshin) are nine deities Kronos released from Tartarus, where they had been sealed by Uranus, to aid Hyperion and Iapetos before the rise of the other Titans.
After Leo Aiolia's battle against Koios, two more Giants attempt to attack the weakened Saint: Leukotes Anemos (白の風(レウコテースのアネモス), Reukotēsu no Anemosu, "White Wind") and Melas Bronte (黒の雷(メラースのブロンテー), Merāsu no Burontē, "Black Thunder").
He carries two enormous blades on his arms and challenges Shura after slaughtering a group of soldiers loyal to Kronos who are retreating due to the Gold Saint's attacks.
[59] Phaios Spathe is mortally wounded by Shura's "Excalibur", but he is killed by Kreios's "Aster Blade", sacrificing himself so the Titan could deliver an easy blow on the Capricorn Saint.
[22] The last three Giants, Nefritis Hoplisma (翡翠の鎧(ネフリテス・ホプリスマ), Nefuritesu Hopurisuma, "Jade Armour"), Elektron Ther (琥珀の獣(エーレクトロン・テール), Ērekutoron Tēru, "Amber Beast"), and Margarites Drakon (真珠の竜(マルガリーテース・ドラコーン), Marugarītēsu Dorakōn, "Pearl Dragon"), are Kronos's three guardian planets that usually take the form of the three long locks of the god's hair.
At the same time, he comments that the graphical complexity of Episode.G sometimes interferes with readability and that this difficulty brought to memory "the most beautiful pages of Kaori Yuki's manga Angel Sanctuary".