Inoru Omega, a male associate of Omega Corporation, possesses combed-back teal hair and sharp dark blue eyes, typically seen behind glasses and clad in a black suit. Standing 185cm (6'1") tall, this Capricorn was born on January 1. He maintains a serious demeanor and dedicated work ethic, profoundly influenced by family dynamics. As the son of Achihiko Omega and older brother to Auru Omega, Inoru relentlessly pursues his demanding father's elusive approval. This strained dynamic fuels deep jealousy toward Auru, who consistently garners paternal praise while Inoru receives scant recognition, his resentment often visible in his expressions. A pivotal moment erupts when Hughie suggests Auru as the Omega Corporation's successor, provoking a harsh reaction from Inoru. His jealousy contributes directly to a critical incident involving the fusion of Jennifer and Apollon. Consumed by intense guilt and self-blame for the resulting predicament, Inoru isolates himself in his room, overwhelmed by shame. His character resolves through the intervention of Auru and Toma Ibuki. With their support, he moves beyond his self-imposed isolation and past mistakes, joining efforts to stop the Jennifer-Apollon threat—marking a definitive shift from prior antagonism. The etymology of his name reflects his background: "Omega" (御芽河) combines "honorable," "bud/sprout," and "river," while "Inoru" (祈瑠) means "pray/wish" and "lapis lazuli."