Ayu Daikuuji is a supporting character in the anime series 'Kimi ga Nozomu Eien.' She is known for her energetic and quirky personality, often bringing comic relief to the story. Despite her playful nature, Ayu is also shown to be a loyal and caring friend, especially to Mayu Tamano, her best friend. Her role in the series includes providing emotional support and lightening the mood during the more dramatic and serious moments, making her a fan-favorite among viewers.