18 year old Yoko Godai (Yoko Minamino) is newly retired from her stint as a yo-yo brandishing special agent, codename Saki Asamiya (aka Sukeban Deka), and is now studying for college entrance exams. This newfound peace comes to a screeching halt when she encounters a young man trying to take down a facist group aiming to overthrow the government by training youth in a militarized private school. Yoko again takes upon the mantle of Sukeban Deka, recruiting both old and new friends for one last mission.