Kaolinite emerges as a pivotal antagonist in the Infinity arc, commanding the Death Busters as their Magus while masquerading as Mugen Academy’s principal. Under Professor Tomoe and the cosmic entity Pharaoh 90, she orchestrates efforts to resurrect their overlord by neutralizing opposition and seizing the Legendary Silver Crystal. Her genesis stems from a lightning strike years before the series, which implanted a Daimon egg within her during Pharaoh 90’s descent. This cataclysm also triggered the lab accident that claimed Tomoe’s wife and left his daughter Hotaru near death, forging Kaolinite into a hybrid bound to the Death Busters’ cause. As Magus, she directs the Witches 5—enhanced human-Daimon hybrids—deploying them to hunt the Talismans tied to Sailors Uranus, Neptune, and Pluto. She surveils threats via a mystical water mirror, wields shards of the Taioron Crystal, and communes directly with Pharaoh 90. Her arsenal includes summoning Daimons, levitation, teleportation, and metamorphosis into a clawed, dark-purple Daimon form with weaponized hair. Driven by loyalty and unrequited obsession toward Tomoe, she competes fiercely for his recognition against Hotaru and the Witches 5. Resentful of Hotaru’s hold on Tomoe’s attention, she clashes with Mistress 9—the force possessing Hotaru—for Pharaoh 90’s patronage. This rivalry propels her to hasten Mistress 9’s awakening, though she is discarded once the entity ascends. In the manga and Crystal adaptation, her downfall unfolds during a battle at Mugen Academy. Transformed into her Daimon state to crush the Sailor Guardians, she meets her end via Super Sailor Moon’s Rainbow Moon Heartache. The original anime bifurcates her fate: her first incarnation perishes at Tokyo Tower pursuing Pure Heart Crystals, only to resurrect as "Kaori," Hotaru’s guardian. Reclaiming her memories, she steals Chibiusa’s Pure Heart Crystal to revive Mistress 9, who executes her for obsolescence. Musicals hew closer to the manga, casting her as the Death Nightmares’ shrewd commander. While omitting her transformation, they accentuate her hierarchical dominance and enduring fixation on Tomoe alongside her rivalry with Hotaru.