Ten years after the Great Tokyo War, Japan has been divided into separate nations, each governed by a "Mosa" and an "Mob" army. Four "Mob" girls from the Saitama clan, Nozomi, Yukina, Ai, and Chiaya, are tasked with resolving disputes between nations and clans as they emerge, traveling across Japan on their motorcycles.

Nozomi Moritomo, a young girl with a passion for change, strives to make a po...