Neron, known in the Netflix animated series Knights of the Zodiac: Saint Seiya as Phoenix Nero, is a Bronze Knight who serves as a significant antagonist. He is the elder brother of Andromeda Shaun and originally trained as a Knight of Athena. In his youth, Nero was described as fierce and tough yet kind, a protective older sibling who trained Shaun to defend herself and genuinely cared for her. However, he later became a rogue Knight, falling under the employ of the villain Vander Guraad. His motivations stem from a combination of personal ambition and loyalty to Guraad, which leads him to oppose his sister and the other Bronze Knights. Physically, Nero is a muscular young man with tan skin, navy blue hair, and silvery blue eyes, giving him an imposing presence. His role in the story is that of a formidable adversary, particularly confronting his sister and the protagonist Seiya. Key relationships include his deep familial bond with Shaun, which is strained by his turn to the side of evil, and his allegiance to Vander Guraad. Throughout the series, Nero undergoes limited development, remaining primarily an antagonist whose past hints at a more honorable nature that has been corrupted. His notable abilities are those of the Phoenix Knight, which include enhanced physical strength and combat skill, as well as the use of his Cosmo to unleash powerful attacks tied to his constellation. The character does not appear in the original Saint Seiya manga or earlier anime; he was created exclusively for the Netflix adaptation.