Eishirō Nijō is a 17-year-old member of the idol group Legit. He attends a prestigious high school as a theoretical student and holds the long-term ambition of becoming Prime Minister. His history with fellow Legit member Daiki Takao stretches back to elementary school, as both attended the same dance school in their youth. There, they worked as back-up dancers for the performer AneLa before forming Legit. Physically, he stands 1.79 meters tall, weighs 66 kilograms, has dark grey hair and grey eyes. His birthday is December 5, his blood type is B, and he possesses a distinguishing birthmark or mole.