Jinnai, a mechanical genius, devises and commands robotic soldiers under Tamamushi—a fabricated queen masquerading as the late emperor’s widow. Among his inventions is a hulking robotic commander, styled after a discarded He-Man archetype, which spearheads the abduction of young women to preserve Tamamushi’s illusory beauty. Jinnai masterminds a plot to detain Princess Ran, the throne’s legitimate successor, engineering her temporary escape only to manipulate circumstances toward her eventual re-imprisonment.

Driven by a hunger for technological supremacy and the exploitation of political turmoil, Jinnai secretly constructs Tamamushi as a robotic puppet, masking her true nature to solidify his covert dominance. By framing the kingdom’s strife as a revolt against the false monarch, he manipulates both sides of the conflict. His schemes hinge on leveraging Ran’s captivity for undisclosed gains, though the full scope of his ambitions remains obscured.

Jinnai’s origins preceding these events are uncharted, and his narrative arc remains tethered to his role as a calculating antagonist, devoid of expansion into broader lore or external media within the franchise.