Takatsu

Takatsu is a delinquent teenager. He becomes 1 of Ken's student in the last 3 episodes of the series.

He is very arrogant and starts fights frequently with ''bad'' people so he will be seen as a hero. Ken, fearing that Takatsu might turn out the same as Ariake teaches Takatsu that he shouldn't fight selfishly. He does this by letting himself get beaten up by the Yakuza and defends himself only against them to show Takatsu. Takatsu then changes his mind after seeing Ken protecting him so he becomes a good student.