Hideo Tanaka

A revolutionary takes over a remote school, makes it into a prison, and attempts to convert its students into terrorists. A young yoyo-wielding "delinquent" student named Saki seeks to stop this with the help of her friends. However they must first lead all the students to safety. (Wikipedia)

Yui is recruited as a student detective working for Seishonen Chian Kyoku (Youth Law Enforcement Division) headed by Kurando Sekine. But she couldn't agree with the violent method used by the division, and resigns after letting go the students who were being persecuted by them. Kurayami Shirei assigns Yoda to investigate Sekine. Yoda succeeds in obtaining a disk that contains the incriminating evidence but during his attempt to deliver the disk to the Kazama sisters, is fatally wounded... (imdb)

This is a 72 minute TV movie that was created during the running of Sukeban Deka series III, featuring the Kazama sisters. Kazama sisters (Yui, Yuma, Yuka - Yui Asaka, Yuma Nakamura, and Yuka Onishi) while on a mission to stop Kage is met by Kikuko Tamon (Kazue Ito), a special agent working for Kurayami Shirei. They capture Yoshiya Kuromaru - a high school student who works for Kage, and through his confession, they discover that Doryuji temple is the hideout of Kage. (imdb)