Shunji Sasaki

Mercenary karate master Tsurugi gets mixed up in a plot by the American mafia to take over the karate dojos in Asia, aided by a corrupt dojo master.

A woman on the run is raped, rescued, then raped again. Escaping, she heads for the hills and finds safe haven at a convent. After becoming a postulant, she catches her fellow sisters engaging in unholy activities.