Makoto Hashiri

Makoto is a loyal member of the Oni-Baku-gumi and despite his reasonably limited fighting skills he is always there to support his friends. He is very successful with women, and later settles on a girl called Mami. He was bullied by Saejima and Kamata before their reformation and was later manipulated to betray Eikichi when the Kamakura and Shonan gangs first met. However, he was brave enough to remain loyal to his friends. Makoto is notable for being one of the few characters to actually change their hairdo over the course of the series, which he does a number of times.

(Source: Wikipedia)