When Oushi was little, he went with his sister to the compulsory civic center. He there saw a girl who did not speak, but signed. That caught his attention and he began to learn sign language. Although he is Yuki Itose's childhood friend, he is not particularly close to Yuki because she attended a school for the deaf until she graduated. However, they started talking again in college. A tall, handsome young man with short black hair styled middle part, olive green eyes.