Meet Akiko, a girl who grew up isolated due to a rare genetic disease that left her without a natural immune system. Her father, determined to provide her with love and care, kept her in a quarantined room and, later, aboard a spaceship with a special room just for her. Due to challenges in maintaining contact with Earth, her father created Bushi, a pet robot equipped with AI, to be her friend, teacher, and her window to the world.
Eventually, her father appealed to Foresight for an experimental Axelar treatment under the care of 7th, Foresight's chief surgeon. Akiko's father and 7th integrated the Axelar processor into Bushi, ensuring Akiko's health and deepening their bond.The two friends' first adventure would be the Farcana Stadium.