Sukeban Deka II in 1985-1986 starred Yoko Minamino as the second "Sukeban Deka", a mysterious girl with an iron mask named Yoko Godai who takes on the identity of Asamiya Saki after being freed from her mask; She will get the help of two other sukeban: Kyoko "Okyo" Nakamura (Haruko Sagara), and Yukino Yajima (Akie Yoshizawa, from jpop band Onyanko Club which will appear in two episodes).

A boy seeks manhood in joining his school’s militaristic cheer squad.

After the events of the TV series, the 18 year old Yoko Godai has abandoned her special agent Saki Asamiya name to return to her normal life, and is now studying for college entrance exams. However, she accidentally bumps into a young man named Kazuo Hagiwara trying to escape from a group of hitmen, and learns that he comes from Sanko Academy, a private school located in a remote island known as Hell's Castle. The school is ruled by a former revolutionary thought to be dead named Hattori who is trying to brainwash students into terrorists to help him stage a fascist coup d'etat in Japan.