Female Ninjas Magic Chronicles 2: Secret of the Christian Bells
くノ一忍法帖II 聖少女の秘宝 / Female Ninjas Magic Chronicles 2: Secret of the Christian Bells (1992)
The Shogun wants a large shipment of gold that the Catholic church sent to help Christianity get a foothold in Japan and the secret to its location is written on five bells hidden in the vaginas of five female ninjas.