Kozue was fighting against Kokoro, and the two of them had already been locked in a fairly intense battle for some time. Their fighting styles were completely different from one another, which made the exchange especially interesting to watch, because Kozue relied heavily on defense, positioning, and carefully timed barriers, while Kokoro preferred overwhelming her opponent with destructive magic before they had enough time to counterattack.
Kozue was a barrier magician who specialized in creating barriers and using defensive abilities, but her talents were not limited to simply putting up shields whenever somebody attacked her. She had learned to use her barriers in more creative ways as well, although some of those techniques were considerably harder for her to control and required much better timing.
