くノ一忍法帖 IV 忠臣蔵秘抄
(1994)
Director:
Masaru Tsushima
Writer:
Hiromichi Nakamoto, Futaro Yamada
Cast:
Makiko Ueno, Toshihide Wakamatsu, Nanae Shindo
The female ninjas have to stop an alliance from carrying out their dastardly deeds, which includes bizarre ninjitsu sex magic to aid them in their quest.