Sakigake!! Otokojuku (魁!!男塾, lit. "Charge! Men's Private School") is a manga series written and illustrated by Akira Miyashita. It was originally serialized from 1985 to 1991.
Plot[]
Otokojuku - a private school for juvenile delinquents that were previously expelled from normal schools. At this school, Japanese chivalry is taught through feudal and military fundamentals.