Ao Kegareboshi is the main protagonist of the anime series 'Kegareboshi.' As a mysterious and determined individual, Ao possesses unique abilities tied to the corrupted stars, which drive the story’s supernatural conflicts. Despite a troubled past, Ao is steadfast and resilient, often placing the well-being of others before his own. Throughout the series, Ao’s journey revolves around uncovering the truth about his origins and fighting against the spreading darkness threatening his world.