Cornelia Prim serves as an antagonist and lieutenant to the primary antagonist, Lady Kahn, within an organization dedicated to training psychic warriors (espers) to dominate the galaxy. Her role involves direct confrontation with the protagonists, including capturing Colonel Ryu Yamaki during a covert infiltration of Lady Kahn's stronghold. Despite their adversarial positions, she exhibits a complex relationship with the protagonist Locke, developing an attraction towards him that adds personal conflict to their encounters. During the "Millennium of the Witch" story arc, she questions Locke about his planetary origins, receiving an answer referencing the planet Toa. Personality analysis indicates assertiveness, confidence, sociability, and a desire for dominance and control, often leading her to take charge. She demonstrates a focus on objective facts, practicality, logic, and rationality in decision-making, alongside organization, attention to detail, adherence to rules, and high personal standards; these traits can manifest as rigidity, inflexibility, and overly critical judgment when situations deviate from her expectations. Her formidable esper abilities include superhuman strength, flight, and electromagnetic force field generation, establishing her as a significant physical threat. A tragic backstory involving her brother's death is mentioned as driving her desire for power and control.