Set 7 years before the events at the beginning of the original Saint Seiya Manga, and 6 years after the death of the Gold Saint Sagittarius Aiolos, Episode G revolves around Athena's Saints, humans with superhuman powers who are devoted to the Goddess of War Athena, and whose duty is to protect the world from evil. The protagonist is the Leo Gold Saint, Aiolia, who is mistrusted by the rest of the Saints because of the seemingly traitorous actions of his brother Sagittarius Aiolos in the past. In turn, he holds a grudge against the Saints as a whole, and against the elite order of the Gold Saints in particular. While the Pope, the leader of the Saints, sends Aiolia on mission after mission to prove his loyalty, evil forces manifest that threaten to destroy Sanctuary, the home of the Saints. A modern-day Titanomachy begins as the Titans, ancient gods with a desire for revenge on the Olympian gods, attack Sanctuary to retrieve the "Megas Drepanon", the weapon into which Zeus had sealed their King, Kronos, in the age of mythology. Their first assault is thwarted by Aiolia, who subsequently gains the attention of the Titans as the "man of the evil omen" who is destined to free their King. With the Titans once again roaming the Earth, ancient monsters are also resurrected worldwide and the Saints have to deal with them.
Backstory of the events taking place before Saint Seiya.
Having been assigned by the human elders the mission of stopping a mystical plague that has afflicted the Youkai with madness, Genjyo Sanzo assembles his team of Youkai warriors, desperately hoping that the disease will not affect them. He sets up qualifying tests that will help him determine the loyalty and worth of Cho Hakkai, Son Goku and Sha Gojyo. The team then journeys west to rid the land of madness.
500 years before the story of Saiyuki, a heretic child with golden eyes is brought into Heaven. He is given into the reluctant care of a minor deity named Konzen, the nephew of the Merciful Goddess Kanzeon Bosatsu. Konzen eventually gives the child the name "Goku". Goku becomes friends with two other minor gods, Marshal Tenpou and General Kenren of the Western Army of Heaven. He also meets a strange little boy who seems to be his own age, the War Prince Nataku. Although Goku is happy in his new home, Heaven is not kind to heretics. There are those who would use Nataku and Goku as tools in an attempt to seize the throne of Heaven, and Konzen, Tenpou, and Kenren may not be able to save them.
Priest Genjo Sanzo and companions Cho Hakkai, Sha Gojyo, and Son Goku maintain their westward journey to stop the resurrection of the demon Gyoumao. As the reputation of the Sanzo Ikkou precedes them, they continue to fight demon assassins at every turn, but they must also deal with increasing tensions within their group in order to defeat a powerful enemy.
Otokojuku - a private school for juvenile delinquents that were previously expelled from normal schools. At this school, Japanese chivalry is taught through feudal and military fundamentals. Similar to an action film, the classes are overwhelmed by violence. Only those who survive it become true men. Source - ANN
Sakura Kousuke is a boy who strives to throw away a past mired in regret. He transfers to a new school for his second year of high school, believing it will give him a chance to come clean. Unbeknownst to him, however, the appearance of five other "Sakura"s in his class will bring the past to his present, forcing him to come to terms with himself, his old friends, and a girl who, though being Kousuke's complete opposite in terms of personality, also knows him better than anyone else.
A young girl named Hinomori Asami starts her studies at the Sakura Hill School for Girls in Tokyo, but the capital is a dangerous place, and mysteries abound.
From Tokyopop: The year is 1921, and this is a Tokyo where monstrous steam-powered robots crash a flower-viewing party only to be cut down samurai-style by a young girl in a kimono and traditional hakama pants. It's eight years after the horrific Demon War, and Japan is a peaceful prosperous place. Meet Ensign Ogami Ichiro, who has just graduated from the Naval Academy. He's assigned to a base in Tokyo, but soon discovers that his headquarters is the Imperial Theater and his first mission is collecting tickets at the gate. He gamely goes about his menial jobs at the theater, surrounded by beautiful girls who seem to know a lot more about what's going on than he does, but he's about to be swept into a roiling world of robots, demons, and hot girls in uniform.
A mysterious enemy from another dimension suddenly attacks a rich country. The vassals panic at the outrageous situation. Genjuro, a samurai, is determined to defeat this huge, unidentified enemy. The only thing he can rely on is his will to be and his determination to survive against an enemy who wants to bring everything to nothing. A unique science fiction work by Masashi Tanaka with his outstanding descriptive skills and ideas!
Mugen is a rough-around-the-edges mercenary with a killer technique and nothing left to lose. Jin is a disciplined samurai who's as deadly as he is reserved. Fuu is a young waitress with a good heart and a resourcefulness that emerges when you least expect it. These three unlikely companions are about to begin a journey that will change all of their lives. It's a dangerous quest for a mysterious samurai that will see our squabbling group of heroes get into and out of trouble more times than they can count (which admittedly, isn't very high). From the cynical gentility of the nobles to the backstabbing of the Japanese underworld, Mugen, Jin and Fuu will face threats from without and within as they hurl insults and throwing stars alike. Ancient Japan is about to get a lethal dose of street justice -- Champloo style. And it will never be the same.
Ryouko dominates as the top fighter at Daimon High, a school where martial arts are an integral part of the curriculum and official duels are used to resolve disputes. Her constant battles to maintain her rank make every competition a high-stakes "Finals" match.