As technology progressed, humanity slowly settled every corner of the solar system, establishing bases from Mercury to Pluto. This expansion gave rise to an expansive sporting event called the Daiundoukai, where hopeful female athletes from across the system vie for glory. The champion is awarded the title Cosmo Beauty, a regal honor.
When young potato farmer Kanata Akehoshi was still a child, she saw a meteor‑like rock tumble from the heavens and smash into a nearby woodland. Investigating the site, she discovered a wrecked spacecraft and a weakened girl who had survived the impact. The girl handed Kanata two wristbands, urging her to join the Daiundoukai and become Cosmo Beauty. Kanata accepted; before she could ask for the girl's name, the woman vanished—leaving no trace, not even the crater. Since that day Kanata has trained relentlessly to keep her promise.
After winning Earth"s qualifying match, Kanata traveled to the University Satellite—a training hub where she and other aspirants hone their skills for the grand contest. There she befriended her rivals, encouraging teamwork to boost performance. As Kanata edged toward the coveted crown, her chances of meeting the mysterious girl grew, and she uncovered a deeper secret behind the Daiundoukai.
The contest is than sport; it is a diplomatic stage where planetary leaders display unity and tech. Kanata"s training, strategy, and mental coaching have made her contender. The deeper she probes the Daiundoukai"s roots, the mysterious it grows.
