Mnemosyne

is the Titaness of Memory in the manga series Saint Seiya: Episode G. She is one of the six Titanesses released by Pontos, along with the Titans Current Okeanos and Galaxy Kreios. She is also the elder sister of Kronos, the King of the Titans.

Background
Mnemosyne is the daughter of Uranus and Gaia. During the mythological era, she was secretly Zeus's consort. She became a traitor to the Titans during the war they waged on the Olympian gods, the Titanomachy, by stealing Dark Lightning Koios's weapon, the "Keraunos" (the Thunder Bolt), which had the power to destroy gods, and giving it to Zeus, who used it to overthrow Kronos. Her treason did not help her escape Zeus's punishment against the Titans; she was imprisoned in Tartarus with the rest of her family.

Appearance
She has a frail, childish appearance and a far-away gaze, but she does not appear to be blind. She is very calm and quiet.

Plot
Mnemosyne is brought back to life in the modern era by Pontos, along with her siblings. Due to her power over memory, she is the one the other Titanesses turn to to understand why Kronos lost his memories after being released from Zeus's prison. In fact, Mnemosyne is secretly working with Pontos against the other Titans and is the one responsible for manipulating the Titans' memories, including Kronos's. Only Dark Lightning Koios and Ebony Hyperion realise that she has been manipulating them, weakening them so that Pontos can use them freely to fulfil his plan.

Abilities
A skilled warrior, through divine cosmo has super strength, super speed, enhanced durability, telepathy (sealed Titans could exacerbate from Tartarus humanity's fighting instincts, risking World War III, and she's the most powerful telepath even among unsealed Gods), telekinesis, energy blasts, forcefields, levitation/flight, dimensional travel, higher senses to track people and events over long distances and through dimensions and soul manipulation (even sealed Titan's power from Tartarus could passively resurrect mythological beings and people all over Earth). Through Dunamis has matter and energy manipulation at the atomic level and reality warping. Through Dunamis and Ichor (divine blood) has regeneration (low-godly) and immortality (mix of types 1, 3 and 4). Can heal and empower other beings through her Ichor and Dunamis.

Techniques

 * : Her transcendent (among Gods) power to manipulate, steal, freely alter and shape the memories of beings. Through this she can massively restrict the capabilities of the former threat to the Olympians, the Titans (even reducing Kronos to a defenseless child with no Cosmo and close to no memories), so that they would be closer to the level of Gold Saints. She also created Hyperion's memories of Apophis, the Egyptian God, or of giving Zeus the Keraunos that Koios tried to seal inside his own memories. These seals could only be broken through the death of the victim or by Mnemosyne herself (Hyperion could not retrieve his memories by himself after learning the truth and Koios had to accept his own death to slowly remember), and they were still in effect while she was sealed by Zeus inside her Soma.

Trivia

 * In Greek Mythology, is never stated to have betrayed the Titans during the Titanomachy. She did become Zeus's consort after the demise of Zeus's first wife, Metis, but this took place after the war with the Titans. She is also the mother of the Nine Muses, born from her union with Zeus. Additionally, there is a water spring in the Underworld that is named after this Titaness, which has the power to restore a person's lost memories if they drink from it.
 * In the original tale of the Titanomachy, Zeus received his thunderbolt not from Mnemosyne, but from her younger brothers, the Cyclopses, whom Zeus freed from Tartarus when the war began.
 * Mnemosyne shares the control over memories with her mythological namesake. The term "mnemonic" (a word used to memorize something) is derived from her name.