Ninja 1

As night falls, the shadows of Koga fall on Iga, and there is a new threat to our lustful vixens. After a passionate sexual encounter, Yatsurugi Shinobu's best friend Mashiba Aya is infected with a parasitic insect and succumbs to its will. With the same insatiable urges, Kage Lena will soon suffer the same tragedy. The only known antidote is buried deep within the laboratories of the Koga Institute and is the only thing that can save Kage Lena. Our hero Shinobu falls victim to the many sexual traps found at the Institute in his attempt to recover the antidote. Now it's up to the remaining Iga girls to save both Shinobu and Kaga Lena... ...and they will do whatever it takes to get the job done!