Sakigake!! Otokojuku

Sakigake!! Otokojuku (Japanese: 魁!!男塾, lit. “Charge! Men’s Private School”), also known as simply Otokojuku, is a Japanese manga series written and illustrated by Akira Miyashita. It was originally serialized at the Weekly Shōnen Jump from 1985 to 1991. It is staged in an all-boys school that teaches how to be true men. The students are trained to “revive the Spirit of Japan” and mainly engage in events where they will polish their manhood and push through with their guts.

The genius principal of the private school, Heihachi Edajima, was a war hero during World War II. He trained his students to play an active role in politics, economics and industries in Japan and all over the world, though the way of training is highly anachronistic.

The martial arts depicted in this series are also highly choreographed using various forms of martial arts.