Auru Omega is a central figure in the series, renowned as a mechanical genius affiliated with Omega Corporation and the Techno Magical group. Her true nature, specifically her status as a Primagista, was initially unclear. She appears as a young female with striking red eyes and short, messy turquoise hair featuring straight bangs. During Primagi performances, her hair transforms: it lengthens slightly, becomes less messy, and gains blue and lime green streaks. A distinct longer lock of blue and green hair appears, accompanied by lime green circular eye makeup and an orange checker pattern on her left cheek. Neon green is her theme color. Her mechanical background shapes her personality, leading her to prioritize efficiency and research data. This objective, science-driven approach often results in communication perceived as cold or blunt. Character development occurs through relationships. In childhood, she created the artificial intelligence Meganee to develop a device converting waccha into energy, fulfilling her father Achihiko Omega's desire. Initially viewing Meganee as purely algorithmic and emotionless, she later acknowledged Meganee's developing sympathy and emotions following observations by Matsuri Hibino about their bond. This realization strengthened their connection and led to the creation of the Flash Elemental Bolt. Her family consists of her father, Achihiko Omega, and an older brother, Inoru Omega, who harbors jealousy towards her. Her interactions with Matsuri Hibino began with analyzing and observing performances for research. After their first meeting and performance together, Auru developed a deep research interest in Matsuri. Spending more time together fostered a friendship Auru was reluctant to admit. This relationship faced tension when she was ordered to spy on Matsuri and Myamu in episode 31; Auru found the task emotionally burdensome and could not complete it. They eventually formed the Primagi Duo Techno Magical. Her straightforward, data-focused personality initially caused annoyance in Myamu. After forming the duo with Matsuri, their disagreements continued within a friendlier context. Tatejima is noted as her partner. Her preferred brand is ELECTRO REMIX, and her favorite food is energy bars. In the January 2023 General Election, she ranked 3rd place. Her name, Omega (御芽河), combines "honorable" (御), "bud/sprout" (芽), and "river" (河). It also references the last letter of the Greek alphabet, omega (Ω). The name Auru (あうる) lacks a clear meaning but may allude to the English word "owl" (アウル), resembling its Japanese rendition.