Aoi Kiryuu is a fictional character from the multimedia franchise Yu-Gi-Oh!. She is known for her role in the Yu-Gi-Oh! VRAINS series, where she is a skilled duelist and a member of the Ignis known as Ai. Aoi is characterized by her determination and intelligence, often using her strategic thinking to overcome challenges in duels. In the series, Aoi adopts the alter ego of Blue Angel, which allows her to compete in high-stakes duels. Her character development explores themes of friendship, trust, and the struggle against adversity, making her a relatable figure for fans of the franchise.