Kazuya Oki is the main protagonist of the tokusatsu series Kamen Rider Super-1. A skilled astronaut and martial artist, Kazuya undergoes cybernetic surgery to survive in space, gaining superhuman abilities. After the Dogma Kingdom attacks the base and kills his colleagues, he becomes Kamen Rider Super-1 to fight against evil organizations threatening humanity. As a hero, he upholds justice, using his martial arts skills and advanced Rider technology to protect the innocent and defeat his enemies.