Oya High

The O in S.W.O.R.D. stands for Oya Kohkoh (Oya High). Also called "Demon Evil High", the place is a national den for yankiis (juvenile delinquents). The most heinous high school where leaders nationwide gather. With Oya High's academic background, the neighborhood's scouts are endless. In order to be scouted for a better place, they continue to repeat a year. Being held back for five years is a common thing. Their average age is 23.

In  Oya High, there is a serious "commitment" beyond anything else. That is: " If someone is able to withstand one hundred punches, he would become the leader of Oya High ." However, there hasn't been a single person strong enough to achieve this. One guy appears alone with the intention of taking the title. He succeeds and on that day, a legend is born. Murayama Yoshiki  put Oya High in place and the O in S.W.O.R.D is created.

Furuya Hideto and Seki Toratarou follow Murayama since the first day he become their leader. Later on, a new student transfers to Oya High. His name is Todoroki and he challenges Murayama for a fight to earn the 'class representative' title. Murayama teaches him how it's like to be a genuine leader. He earns Todoroki's respect and the transferee joins the team. Todoroki becomes the top candidate to lead Oya High when Murayama graduates.