Leo Aiolia stands among the twelve Gold Saints of Athena in *Saint Seiya: Saintia Shō*, serving as a loyal guardian of Sanctuary alongside Scorpio Milo with unwavering dedication to the goddess. His established traits from the main series endure, including a righteous nature and formidable combat abilities as the Leo Gold Saint. Operating under the Sanctuary hierarchy—which includes the Pope, later revealed as the impersonating Gemini Saga—Aiolia joins the defense against the goddess Eris and her forces. Throughout the spin-off, his portrayal remains consistent with the franchise: a powerful and principled Gold Saint committed to protecting Athena and Sanctuary, maintaining his established presence and affiliation without deviation or expansion.