Miren no Tani

Tanabe and Kouno from Hyuga, Miyazaki, both are accepted to attend "Seventh High School," one of the most prestigious schools under the old education system. What the two freshmen did not expect, though, was the bandit-like peers in the older classes. Tanabe and Kouno must fight to protect themselves from the ruthless attempts of the upperclassmen and ensure they all come out in one piece.

(Source: Fantasista Inc.)