Kanzaki Kaori's sister is Kanzaki Kaori, a character from the light novel series A Certain Magical Index. She is known for her strong personality and exceptional combat skills, particularly in the use of magic. Kaori is a member of the Church of England and plays a significant role in the series' storyline. Kaori's sister is often depicted as a protective figure, showcasing a deep bond with her sibling. Their relationship highlights themes of family loyalty and the struggles they face in a world filled with supernatural conflicts. This dynamic adds depth to Kaori's character development throughout the series.