The relationships between Karasuno's first years, Hinata, Kageyama, and Tsukishima, play a crucial role in their development throughout the series. Hinata and Kageyama's intense rivalry motivates them to enhance their skills and collaborate effectively as a formidable duo during matches. Tsukishima's reserved and analytical approach serves as a contrasting influence, encouraging Hinata and Kageyama to diversify their playing styles and adapt to different challenges. Collectively, these interactions contribute to the growth and well-roundedness of the first years as both individual players and cohesive teammates.