Saori Kido, mortal incarnation of Athena, Greek goddess of wisdom, war, and hope, emerged as an infant beneath her own statue in Sanctuary. Nearly killed by Gemini Saga, she was rescued by Sagittarius Aiolos and delivered to Japanese magnate Mitsumasa Kido, who raised her as his granddaughter. Her privileged upbringing initially fostered arrogance, leading her to scorn Graude Foundation orphans—many Mitsumasa’s biological children—until discovering her divine heritage at age nine. This revelation reshaped her into a protector of humanity, tempering her pride with purpose. Her divine arsenal spans cosmic energy manipulation, healing auras, teleportation, and the ability to awaken latent power in Saints through her blood. She commands the golden staff of Nike, the Aegis shield, and the peerless Athena Cloth. A strategist defined by self-sacrifice, she once let herself be pierced by a cursed arrow to expose Sanctuary’s corruption, relying on Bronze Saints to rescue her within twelve hours. When confronting Poseidon, she surrendered as a hostage to delay his world-flooding wrath, trusting her Saints to dismantle the oceanic pillars sustaining his realm. Against Hades, she engineered a covert assault on the Underworld, temporarily sacrificing her life to weaken its defenses. Her Saints transported her coffin to Elysium, where she confronted Hades clad in her divine armor, sealing him with her staff. In *Saint Seiya Omega*, she adopted Kōga, a youth tainted by darkness, mentoring him as a Saint. Facing threats like Mars and Pallas, she balanced maternal care with divine duty, occasionally withholding truths to shield allies. During the Pallas crisis, a cursed artifact bound her life force to the enemy, forcing her to weigh self-destruction against tactical warfare. The sequel *Next Dimension* saw her journey to the 18th century to sever Hades’ curse on Seiya, interacting with past Saints and deities. This underscored her eternal role in mediating divine conflicts. Though her bond with Seiya remained platonic, their loyalty held undercurrents of unspoken tension. During the *Hades Chapter - Inferno* arc, she faced criticism for apparent passivity while trapped in the Underworld, yet her restraint preserved strength for pivotal acts: telepathically guiding Kōga to resist Abzu’s possession and confronting Hades through diplomacy before combat. Clad in Kamui armor, she channeled cosmic power to challenge him directly, achieving victory at profound personal cost.