He has a fierce dislike of Shinnosuke and Kazama-kun and usually gets into shouting matches with the latter. He also loves to bully Masao. Even though he is confident in his athletic ability and acts as the Rose class' leader, he almost always loses to the Sunflower class by Shinnosuke's strange actions or because another student in Sunflower class rises to the occasion. He has formed a clique with classmates Hitoshi and Terunobu.