Shinichi Ichikawa, also known as Zebraman, is a mild-mannered elementary school teacher who transforms into a superhero. His life is mundane until he discovers his ability to become Zebraman, a character from an old TV show he admired as a child. As Zebraman, he battles alien invaders threatening Earth. Despite his initial lack of confidence, he grows into his heroic role, balancing his dual life. The series explores themes of self-discovery, courage, and the impact of childhood dreams on adult life.