So the plot goes.
Martial artist that uses his hair to fight. He's pretty cocky and is really good at fighting. One day though his hair gets cut off either when he's sleeping or he's drunk. Regardless the next day he gets challenged to a fight and looses terribly and has to run away. He travels for days and collapses to be revived by a girl. Becomes stronger and learns to fight without his hair and goes back to regain his honour