A yankee boys' school has a sibling system, just like the sister system at a girls' school. Hondo, a yankee who boasts overwhelming strength, is begged by new student Kurosu one day, "Please be my big brothe...

The police academy manga centers on a group of cadets overseen by a harsh training instructor named Kimichika Kazama, who pushes the cadets to extremes and washes them out for even the slightest infractions.