Kazuya Oki (沖 一也, Oki Kazuya) is a member of the International Space Development Program who becomes the cyborg Kamen Rider Super-1 (仮面ライダースーパー1ワン, Kamen Raidā Sūpā Wan, Masked Rider Super-1), also known as the Super-Rider (スーパーライダー, Sūpā Raidā), the titular character from the Kamen Rider Series installment Kamen Rider Super-1.