Daughter of billionaire tycoon Tanaka Ozawa of Earth. When Earth's greatest environmental disaster struck in 2163---a result of the destructive solar wave---Tanaka Ozawa nearly exhausted his entire fortune and resources to help supplement the United Earth Agency's manufacture of the ten starships that would hurl six-billion of Earth's citizens to the nearby solar system of Alpha Centauri. All he asked in return was that his sickly nineteen-year-old daughter accompany the caravan of ships without him. Being nearly one hundred years in age, Tanaka Ozawa knew that his daughter's destiny was not his own. Having lost his wife while giving birth to his daughter---this after having already lost his first child, Ozawa discovered to his horror that his one remaining child was afflicted with the rare disorder amyotrophic lateral schlerosis (Lou Gerrig's disease). Seeing to it that his brilliant daughter had the best of everything, he convinced Tan to journey off world by explaining that her vast intellect would greatly increase the chances of the colony's survival, and that she would experience her greatest adventure despite her limitations. He was correct. Not only was Tan cured of her malady en route, her very presence and tenacity helped to shape the colony at Alpha Centauri as well as the Starforce of Omicron.