Shigeru Jo (城 茂, Jō Shigeru) is the main protagonist of Kamen Rider Stronger. Shigeru was reconstructed as Electric Human Stronger (電気人間ストロンガー, Denki Ningen Sutorongā) by the evil organization Black Satan before he escapes with fellow cyborg Yuriko Misaki, thus renaming himself as Kamen Rider Stronger (仮面ライダーストロンガー, Kamen Raidā Sutorongā, Masked Rider Stronger).