Mitsukuni Aoi, the half-human offspring of a human gardener and an extraterrestrial space pirate, navigates a fractured existence when their mother’s concealed alien identity and piratical past surface, drawing them into clashes with the Galactic Patrol. Initially anchored to an ordinary Earth-bound life, Mitsukuni’s reserved nature starkly contrasts their mother’s audacity, deepening internal conflict as galactic turmoil encroaches.

Puberty triggers a transformative biological inheritance from their mother’s species: volatile gender instability that stabilizes into a female identity by the first narrative arc’s end. This metamorphosis coincides with their unexpected ascension to galactic queen, demanding mastery over military command and political maneuvering amid courtly rivalries.

Fragmented childhood memories of the antagonist Ranban—linked to their mother’s history—resurface as cryptic flashbacks, slowly unveiling Mitsukuni’s pivotal role in escalating conflicts. A subplot entwines a misunderstood bracelet, initially perceived as an amplifier of latent power but exposed as a critical limiter restraining dangerous, uncontrollable abilities.

Later arcs challenge Mitsukuni with usurpers and manipulators, including a psychic former queen weaponizing allies through mental coercion. Forging alliances and confronting systemic oppression, they dismantle autocratic regimes to institute democratic governance. Bonds with comrades, such as a Galactic Patrol officer, deepen through adversity, oscillating between friction and camaraderie.

Their journey grapples with self-definition amid clashing human-alien legacies, charting a reluctant evolution from displacement to sovereign resolve. Balancing personal identity with cosmic duty, Mitsukuni confronts familial echoes and alien societal expectations, ultimately reclaiming agency to reshape galactic destiny.