Shigeru Jo is the main protagonist of the series 'Kamen Rider Stronger.' After losing his friend to the evil organization Black Satan, Shigeru volunteers to be transformed into a cyborg by them, only to rebel and fight against their tyranny. As Kamen Rider Stronger, he uses his immense strength and electrical powers to protect humanity. Shigeru is known for his strong sense of justice, determination, and his iconic electric-themed Rider suit, making him a crucial hero in the Kamen Rider universe.