Osamu Miya

Osamu is the second-year wing spiker at Inarizaki. He is more reserved and introverted than his twin brother, Atsumu. Osamu appears to be the calmer of the Miya twins with a laid back and deadpan personality, often seen with a neutral expression. Despite his outward demeanor, Osamu is highly competitive and becomes heated even if it isn't obvious on the surface. However, with enough provocation, he gets angry and physical. He's shown to have a sense of humor, often teasing his brother Atsumu.