Hiroshi Tsukuba is the protagonist of the tokusatsu series 'Kamen Rider Skyrider' (also known as 'The New Kamen Rider'). He is a courageous and idealistic young man who is transformed into Skyrider by Professor Shido to fight the evil organization Neo Shocker. As Skyrider, Hiroshi uses his enhanced abilities and the power of flight to protect humanity from monstrous threats, embodying the spirit of justice and heroism central to the Kamen Rider franchise.