Kayo Hinazuki is a fictional character from the manga and anime series Erased (also known as Boku dake ga Inai Machi). She is a young girl who becomes a key figure in the story, which revolves around time travel and the prevention of tragic events. Kayo is depicted as a lonely and bullied child, facing difficult circumstances in her life. In the series, Kayo's character is central to the protagonist's mission to change the past and save her from a tragic fate. Her struggles and resilience resonate with themes of friendship and the importance of support, making her a memorable character in the narrative.