The strongest delinquent of Hekikuu high, previously expelled for beating up one of the teachers: after being defeated by Kitano, he proclaims himself his "little brother." He sports spiked bleached hair and has no eyebrows.

After claiming loyalty to Kitano, he becomes less delinquent-like. He doesn't get into a lot of fight anymore (although he doesn't lose any of his fighting skill), nor does he skip classes, staying calm most of the time. His old, hot-blooded self, comes to the surface when someone tries to harm Kitano or himself.

At the end of the series, when confronted with the fact of Kitano being normal, Takehisa's old comrades had come and asked him to join up in order to beat up Kitano; he proclaimed that whether or not Kitano is a delinquent, he is still Takehisa's best friend. He then proceeded to beat up his old comrades with a smile on his face.
(Source: Wikipedia)