Scorpio Milo, a young man with long purple hair and piercing light blue eyes, stands at 185 cm tall with a muscular build of 84 kg. As the Gold Saint guarding the eighth house of the Sanctuary—the Scorpio Temple—he serves Athena with unyielding resolve. His pride and self-confidence reflect a deep reverence for the honor of the Gold Saints, though beneath his initially merciless exterior lies a steadfast loyalty to justice and comrades.

During the Sanctuary Arc, Milo confronts the Bronze Saints, paralyzing foes with his Restriction technique before unleashing the Scarlet Needle, a relentless barrage of strikes amplifying agony with each hit. In his clash with Cygnus Hyoga, he halts the assault upon recognizing Hyoga’s resolve, healing his wounds to grant passage as a sign of respect.

The Hades Arc reveals Milo’s wary distrust of Gemini Kanon, whom he attacks with the Scarlet Needle to test his allegiance. The final strike, however, conceals intent: rather than delivering death, it stops Kanon’s bleeding, a calculated act affirming Milo’s allegiance to Athena’s cause.

His combat prowess centers on the paralyzing Restriction, the escalating Scarlet Needle sequence, and Antares—the lethal culmination of his techniques. Over time, his demeanor evolves from arrogant self-assurance to tempered humility, yet his core remains unshaken: an unwavering protector of Athena and the bonds that unite her warriors.