Upon becoming the Grand Pope, Shion could no longer perform the duties of the Aries Saint. Thus, he began to train an apprentice to succeed the Cloth. In the 20th century, Shion found that successor in Mu, an extraordinary young man of the same race as Shion with a natural talent for Cloth reparation. Mu not only became the new Gold Saint of Aries, but he did so with all of Shion's abilities under his belt.
After Athena had once again reincarnated as a human infant after more than two centuries, Shion began preparations for the inevitable war. He understood that, due to old age, his own time would soon be up, and therefore needed to choose a successor for his seat. With the exception of Sagittarius Aiolos and Gemini Saga, all of the Gold Saints were too young and inexperienced to take up the responsibilities. After a lengthy time of consideration, Shion eventually settled on the Gold Saint of Sagittarius. While Aiolos was not as powerful as Saga, Shion felt confident in his choice because he knew of Aiolos' undying loyalty to Athena and undeniable devotion to virtue.
Unfortunately, Shion was confronted by Saga in regards to his decision shortly after the announcement. It seems Saga felt discontent at Shion's choice, and demanded an explanation for it. Shion revealed that, while he acknowledged that Saga had a heavenly reputation and was the more powerful of the two, he could not help but sense something terrifyingly dark within the Gemini Saint. It is at this point that Saga confirmed Shion's suspicions, and assaulted the weary Pope with a deathblow.
In the Underworld, the realm of the dead, it was announced that Hades would attack the Sanctuary and unleash the Greatest Eclipse on Earth. This left the dead Saints in a predicament, being unable to do anything, but opportunity rose when Hades told them that, if they killed Athena, they would live again.
Not even death could keep Shion from aiding Athena in her Holy War against Hades. Years after his assassination, he returned from death to help Athena and the current Saints with a way to get into the realm of the Dead. Originally, it was assumed that Shion, along with other deceased Saints such as Saga, Shura, Camus, Deathmask, and Aphrodite, had sold their souls to Hades in exchange of resurrection and returned to Sanctuary to kill Athena. It turned out that this was a grand scheme by the former Pope and the dead Saints in order to get a message to Athena—that she must die and awaken her 8th sense if she hoped to successfully defeat Hades within his domain.
After the message had been delivered, Shion met with the Bronze Saints Seiya, Shiryū, Hyōga, and Shun to tell them what had really happened between the Gold Saints and Athena. Perhaps as a nod to his apprentice's talents for armor reparation, Shion instantly restored all four Saints' individual Cloths using the blood of Athena. Finally, in his last act as the Grand Pope, Shion commanded the young Bronze Saints to invade the realm of the dead — they must not stop until every Specter had been killed, and Hades himself was on his knees.
In the manga, it is at this point that Shion's restored body gave way, and the former Aries perished into dust. In the anime adaptation the event is depicted in the same way, although Shion lasted until near sunrise. Prior to disappearing for good, Shion reunited with his old friend Dohko to share past times for a brief moment.
Power and AbilitiesEdit
Superhuman Strength: As a Gold Saint Shion had the strenght to destroy a gigantic boulder with a single finger and cause immense damage with one hit.
Cosmos Mastery: As a former Gold Saint, Shion has fully mastered the 7th sense, which gave him great power and the ability to move at the speed of light. Shion is among the most powerful of Athena's Gold Saints.
Inmense Psychic Power: Shion is naturally gifted with great psychic powers that allow him to have control over telekinesis, telepathy and even teleportation.
He is also versed in the ways of Cloth restoration.
- For the anime, in the first episode, the Pope who gives the Pegasus Cloth is Shion, but there is a lot of confusion about all this because the voice actor of the Pope in that episode was the narrator, who also played Aiolia later. The identity of the Pope was not revealed until he appeared in the Hades Chapter manga. Before that he was simply known as the Pope, or the One who fought with Roshi/Dohko in the Previous Holy War. His constellation and his name were kept a secret because the anime ended at the start of Hades Chapter.
- According to official info, in Anime Special 1, where they point out the differences between the anime vs. manga, the Pope in episode 1 is the dead Pope of the manga. He hadn't been killed by Ares (Saga) yet. In fact the first time Pope Shion's constellation was acknowledgeed was in 1991, Saint Paradise, card 36, "Aries Pope." Again, his name and face was kept secret. It was not until 2002, in the Digest episode that was aired before episode 1 of Hades Sanctuary OVA, that the name "Shion" was mentioned. In this Digest episode, it finally confirms for the anime, the dead body on Star Hill discovered by Marin is Ares, Shion's little brother. This is another difference from the manga where, the dead body on Star Hill is Shion. In this Digest episode, it also mentions the Pope (Shion) was killed by Saga when Galaxian Wars was being held. The actual location of Shion's corpse is unknown.
- In the short novel, "Saga! Prelude of Desire", Shion has a younger silver saint brother named Ares. This character has no relation to the God of War, nor is he the same Ares that would become Pope during the classic anime -- at least, not physically. In the short novel, Ares is secretly killed by Saga after he had accidentally discovered Saga's evil personality. In the classic anime, it was announced that the Grand Pope's "younger brother" had succeeded him -- since Saga had met both Shion and Ares, it can be inferred that he was masquerading as Shion's younger brother, and not the God of War himself. In the manga, Saga continued to use the identity of Shion up until Seiya invaded the Pope's throne room.