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Katsuyuki is the leader of the K.T. Butai (Katsuyuki Tsumoto Fighting Group), a kind of ‘sub-unit’ of the Oni-Baku gang, consisting of Yasuo, Atsushi, Saegusa, Kitamura and numerous other students. He has a hair-trigger temper, and as such can cause a lot of trouble without thinking about it.<br /> <br /> He once fought Eikichi, but was beaten and decided to adopt him as a role model. He is loyal to the Oni-Baku and will fight anyone who badmouths them, but his main allegiance is to Eikichi.<br /> <br /> He has a rivalry with Tamura, and a long-standing grudge against Kenkichi Hino, who is loyal to Ryuji like how he is loyal to Onizuka.<br /> <br /> (Source: Great Teacher Onizuka (GTO) Wiki)<br /><br />
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性別：
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Katsuyuki is the leader of the K.T. Butai (Katsuyuki Tsumoto Fighting Group), a kind of ‘sub-unit’ of the Oni-Baku gang, consisting of Yasuo, Atsushi, Saegusa, Kitamura and numerous other students. He has a hair-trigger temper, and as such can cause a lot of trouble without thinking about it.<br /> <br /> He once fought Eikichi, but was beaten and decided to adopt him as a role model. He is loyal to the Oni-Baku and will fight anyone who badmouths them, but his main allegiance is to Eikichi.<br /> <br /> He has a rivalry with Tamura, and a long-standing grudge against Kenkichi Hino, who is loyal to Ryuji like how he is loyal to Onizuka.<br /> <br /> (Source: Great Teacher Onizuka (GTO) Wiki)<br /><br />
