Ryo Murasame (村雨 良, Murasame Ryō?, voiced by Akira Kamiya in the radio drama and portrayed by Shun Sugata in the TV special) and his sister were shot down while flying in the Amazon jungle by a terrorist organization known as the Badan Empire and had both of them captured. Later, Badan kills his sister and turns Murasame into a cyborg warrior named ZX and brainwashes him; however, an accident enables him to regain his memory. Murasame becomes a Kamen Rider to avenge his sister. His first encounter with the past Kamen Riders is when he mistakes both Kamen Rider Super-1 and Riderman as soldiers of Badan.
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