Kamen Rider Nigo is a major hero in the Kamen Rider series and the second masked rider created to fight the evil organization Shocker. He is the successor and partner of the original Kamen Rider, helping continue the struggle against villainous schemes after the first rider’s debut. Known for his courage, speed, and strong sense of justice, Nigo plays a key role as a supporting protagonist and iconic ally in the franchise’s early history.