D-Boy Aiba, whose real name is Takaya Aiba, is the protagonist of the anime series Uchuu no Kishi Tekkaman Blade. As Tekkaman Blade, he is a powerful armored warrior fighting against the alien Radam invasion threatening Earth. D-Boy struggles with amnesia and personal trauma while using the Tekkaman armor to protect humanity. Driven by a strong sense of justice and a desire to save his family and the world, he is a complex hero whose journey is central to the series’ dramatic and emotional narrative.