Aria Holmes Kanzaki is a fictional character from the light novel series A Certain Magical Index, created by Kazuma Kamachi. She is a skilled magician and a member of the Church of England, known for her expertise in magic and combat. Aria is often depicted as a serious and determined individual, dedicated to her mission. In the series, Aria plays a significant role in the conflict between magic and science, often interacting with other key characters like Touma Kamijou and Index. Her character is well-received for her strong personality and complex background, contributing to the rich narrative of the series.