Exkizer is the main heroic robot protagonist of Yuusha Exkaiser, a brave and noble transforming mecha who protects Earth from evil forces. He serves as the central leader of the hero team, embodying justice, courage, and friendship. In the series, Exkizer fights alongside his human allies against hostile alien threats, taking on a guardian role and often acting as the strongest defender in battle. His character represents the classic super robot ideal of a righteous champion.