She was first sent by Tomoe to implant Daimon pods in objects to turn them into Daimon Heart Snatchers, who would then extract Pure Hearts from people. She was searching for three Pure Hearts in particular that would turn into a mirror, a saber, and a crystal ball once extracted, but she never did find them. After her last Daimon, Senishenta, was defeated, Kaorinite absorbed Senishenta's power from the shoe she created her from, and fought the Sailor Scouts. She was apparently irreversibly winning until Sailor Uranus used World Shaking on her, freezing her in her own crystal beam and sending her falling over the edge of Tokyo Tower to her death.