Shin Kazamatsuri is the protagonist of 'Kamen Rider Shin,' a 1992 entry in the long-running Kamen Rider franchise. Unlike other Kamen Riders, Shin undergoes a tragic transformation into a grasshopper-like mutant as a result of unethical genetic experiments. Struggling to maintain his humanity, Shin is forced to fight against the organization that turned him into a monster. His character explores darker and more mature themes, making him one of the most unique and complex Riders in the series.