Jessica Trois, a human female designer within the Designers Thirteen (formerly the Designers Seven), co-created the fashion brand Precious Muse. She presents as an elderly woman with stark white hair sculpted into a U.F.O.-like silhouette, two tapered locks fastened at the ends with spherical purple accessories, and piercing black eyes. Known for her sharp wisdom and composed seriousness, she navigates professional alliances among the Designers Thirteen while persistently pursuing Anju Shiratori to inherit her role—a proposal repeatedly declined. Her name blends Hebrew and French roots: "Jessica" (meaning "God beholds") and "Trois" (translating to "three").