Shitotsugh Lhadatt, known also as Shirotsugh or Shiro, is a 21-year-old protagonist with fair skin, hazel eyes, and brown hair. His initial green jacket gives way to a blue and red Royal Space Force uniform, later replaced during his mission by a white shirt and blue jacket.

Born middle-class, childhood memories include watching naval fleets and aircraft. His mother, Mrs. Lhadatt, is deceased. He enlists in the widely dismissed Royal Space Force, becoming a trainee under General Khaidenn and forming a close bond with Marty Tohn. Initially lazy and calm, his demeanor shifts upon meeting Riquinni Nonderaiko, a devoutly religious woman living with her young daughter, Manna Nonderaiko. This encounter drives him to volunteer as an astronaut candidate for the Rocket Zero mission, partly to impress Riquinni.

Their relationship evolves complexly. Discovering her demolished cottage triggers intense frustration. In a critical moment of moral failure, he attempts to sexually assault Riquinni but stops mid-act, consumed by regret; she knocks him unconscious. The next day, her forgiveness deepens his spiritual turmoil and fuels an existential crisis, all unfolding against escalating political exploitation of the mission by government and military factions.

Facing the space launch, he wrestles with the mission's ethical weight and his own actions, undergoing profound internal transformation. Confronting humanity's violence and corruption, he seeks redemption through Rocket Zero, viewing space travel as a path to transcendence. He ultimately boards the rocket, journeying to orbit—presumably toward the moon—symbolizing both physical and spiritual ascent.

A planned sequel, *Uru in Blue*, intended to feature his return, was canceled after multiple production attempts. No other official media expands his story beyond the original film.