Haru Hoshino is a fictional character from the popular manga and anime series Oshi no Ko. She is depicted as a talented and ambitious young girl who aspires to become a successful idol. Haru's character is known for her determination and hard work, often facing challenges in the competitive entertainment industry. In the story, Haru's journey is intertwined with themes of friendship, ambition, and the complexities of fame. Her interactions with other characters, including Ai Hoshino, highlight the struggles and triumphs of pursuing one's dreams in a demanding environment.