The rivalry between Karasuno and Aoba Johsai evolves throughout the series as both teams face off multiple times, pushing each other to improve and grow stronger. Initially, Aoba Johsai is seen as the dominant team with their strategic and calculated plays, while Karasuno relies more on their team spirit and determination. However, as the matches progress, Karasuno learns from their losses and adapts their playing style, leading to intense and closely fought battles between the two teams. The rivalry becomes more respectful and competitive, with both sides pushing each other to their limits in order to come out on top.