If Kageyama had joined Nekoma instead of Karasuno, the dynamic of the team would have been quite different. Kageyama's exceptional setting skills combined with Nekoma's strong defense and strategic plays would have made them an even more formidable team. With Kageyama's precise sets and Kenma's strategic mindset, Nekoma would have become a powerhouse in the volleyball world, challenging powerhouse teams such as Fukurodani and Itachiyama. The matches between Nekoma and Karasuno would have been intense, with Kageyama facing off against Hinata on the opposite side of the net, creating a unique rivalry between the two former teammates. Ultimately, Kageyama's presence on Nekoma would have added a new layer of excitement and competitiveness to the story, showcasing the different paths and outcomes that could have occurred in the world of Haikyuu.