Milo de Escorpio stands as the formidable Gold Saint guarding Scorpio Temple in Athena's Sanctuary. He ascended to Gold Sainthood at the exceptionally young age of seven, receiving both the rank and the Scorpio Gold Cloth then. His combat relies on the Scarlet Needle technique, targeting fourteen points on an opponent's body mirroring the Scorpio constellation's stars. Each strike inflicts escalating pain, sensory deprivation, and bleeding, with the final blow, Antares, usually proving fatal. Despite this brutal method, Milo consistently offers opponents the chance to surrender before enduring the full sequence. He also wields Restriction, a cosmos-based power to immobilize foes. In the Sanctuary arc, Milo overpowered Bronze Saints Seiya and Shiryu. His pivotal confrontation was with Cygnus Hyoga. After Hyoga resisted Restriction due to icy defenses, Milo delivered fifteen Scarlet Needles. Near defeat, Hyoga awakened his seventh sense, launching an Aurora Thunder Attack simultaneously as Milo struck with Antares. Witnessing Hyoga's resolve to fight on despite his injuries, Milo conceded victory. He realized Hyoga's attack had frozen the critical points on his Gold Cloth, points that would have been fatal without its protection. Milo then stopped Hyoga's bleeding and later used his own blood to repair the damaged Cygnus Cloth as atonement, revealing his capacity for mercy and respect for unwavering loyalty to Athena. During the Hades Chapter, Milo played a key role testing Gemini Kanon's loyalty after Kanon arrived at the Sanctuary pledging aid to Athena. Skeptical due to Kanon's past treachery as the Sea Dragon General, Milo subjected him to the Scarlet Needles, ignoring Athena's initial pleas for forgiveness. Kanon endured without retreating. After delivering what seemed to be Antares, Kanon collapsed but later rose, revealing Milo had faked the final strike to halt Kanon's internal bleeding instead of killing him. Milo declared Kanon a fellow Gold Saint, demonstrating his commitment to the sanctity of the role and his pragmatic approach to protecting Athena. Later, alongside Aries Mu and Leo Aiolia, Milo confronted the spectres of Gemini Saga, Aquarius Camus, and Capricorn Shura after they killed Virgo Shaka using the forbidden Athena Exclamation. Milo attacked each spectre with fourteen Scarlet Needles. When the spectres prepared another Athena Exclamation, Milo, Mu, and Aiolia countered with their own, resulting in a destructive stalemate. Milo displayed visible anguish during this confrontation, especially facing his close friend Camus, now an enemy. After Athena's subsequent suicide, he joined Mu and Aiolia to intercept underworld forces at Hades' castle. There, Wyvern Rhadamanthys overpowered and imprisoned them in Cocytus due to their reduced power in Hades' domain. Revived by Athena's cosmos in the Underworld, Milo regrouped at the Wailing Wall. Using a Libra weapon alongside other Gold Saints, he participated in the ultimate sacrifice of all twelve, channeling their collective cosmos through the Sunlight to destroy the Wall and enable the Bronze Saints' passage to Elysium. Beyond the main storyline, Milo appeared in spin-offs. In *Saintia Shō*, set years earlier, he saved Equuleus Shō and investigated disturbances linked to the goddess Eris, battling the dryad Atë and encountering the rogue Silver Saint Rigel. In *Episode G*, he supported Leo Aiolia during conflicts with Titans, collaborating with Aquarius Camus against entities like the Pearl Dragon, solidifying their hinted friendship. During a battle against Kronos' giants, Milo and Camus executed a combined attack, though Milo was ultimately destroyed by the Pearl Dragon's counterstrike after Camus intervened to protect him. In *Next Dimension*, Milo appeared as a spirit alongside the other Gold Saints to aid Athena. Milo's personality embodies the Scorpio archetype: outwardly formidable and unyielding, employing psychological tactics and sharp dialogue to unsettle opponents. He holds the pride and honor of the Gold Saints paramount, acting decisively to uphold their reputation. Underneath this stern exterior lies compassion and fairness, recognizing true courage even in adversaries and offering redemption. His actions consistently reflect deep devotion to Athena and Sanctuary principles, balancing the Scorpio traits of inflicting necessary pain and facilitating healing.