Prince Shardus, alternately known as Prince Heinel or Zardoz across adaptations, emerges as a pivotal Boazanian royal embroiled in interplanetary conflict with Earth. Born to Crown Prince La Gohl—a hornless advocate for equality exiled for his ideals—Shardus bore lifelong stigma as the “traitor’s son,” enduring scorn from Boazanian elites. His mother’s death in childbirth and father’s imprisonment left him in the care of maternal grandparents, where childhood bullying forged resilience until noblewoman Katherine Rii became his defender and lifelong confidante.

Graduating top cadet at the Boazanian Institute of Military Sciences, Shardus secured command of the Earth invasion fleet under Emperor Zu Zambajil, unaware the emperor viewed him as a rival to eradicate. Ruthless strategies defined his early campaigns: deploying biomechanical Beast Knights, threatening planetary genocide, and enforcing discipline through his sword. Yet beneath his merciless facade lay conflicted loyalty—haunted by his father’s legacy and private disdain for Boazanian oppression.

Shardus’s arc shifted upon discovering Earthling half-siblings sired by La Gohl during exile. Learning his father’s rebellion sought to abolish slavery, not betray Boazania, unraveled his convictions. In a climactic act, he shielded brother Kenichi from an explosion, sacrificing himself with remorseful acknowledgment of their bond and rejection of imperial tyranny.

His appearance mirrored his duality: shoulder-length ginger-blonde hair framing pale skin and brown eyes, crowned by prominent horns. A dark blue mink coat draped over a red bodysuit with white frills, discarded before combat to signal lethal intent. Loyal aides Katherine, General Jangal, and scientist Zuhl stood by him until the end, witnesses to his journey from embittered heir to redeemed martyr.