Aya Maruyama is a lively and cheerful character from the multimedia project BanG Dream!. She is the lead vocalist of the idol band Pastel*Palettes. Aya is known for her optimistic personality and determination to succeed as an idol, which often inspires those around her. Despite her occasional clumsiness and self-doubt, she remains dedicated to her dream of bringing smiles to people's faces through her performances. Her journey in the series highlights themes of friendship, perseverance, and the challenges of the idol industry.