Oya High School (鬼邪高校 Oya Koukou) is a delinquent high school located in Oya district in S.W.O.R.D. The school is separated by two different types of students, full-time (全日制 Zenjitsusei) and part-time (定時制 Teijisei).

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 …

In the midst of a volatile situation with Oya Koukou (Oya High School), Yamato is facing fierce opposition from his fellow members Sannoh Rengokai (Hoodlum Squad). He is struggling to find a way to somehow save Chiharu, who has nowhere to go.

High&Low The Worst is a 2019 Japanese action film directed by Shigeaki Kubo. [1] . With collaboration with Hiroshi Takahashi 's manga Worst, it told the stories of the war between Oya Koukou (Oya High School) from the world of High&Low and Housen Academy from the world of Worst and Crows. [3] .

Murayama Yoshiki was the leader of Oya High. He enrolled into Oya High and managed to withstand "100 Hits" tradition, placing him as the leader of Oya High. He was considered as a part-time student. Under his leadership, he was able to make Oya High the "O" in S.W.O.R.D.

Oya District (鬼邪地区 Oya Chiku) is an area located in the northern part of S.W.O.R.D District. The area borders with Kokuso District to the north east, Rasen District to the north and north west, Arai District to the west and southwest, and Sannoh District to the east.

Still, it is Oya High School, the strongest thug school where problem children from all over the country gather, but with the exception of a few executives such as Murayama, Todoroki, Furuya, and Seki, all of them are too weak, so it is highly likely that the script was written this way to increase the fighting power of each individual.