What is the mystery behind the hidden past of Shinjyo reiko? How did Mashiba Aya, who penetrated by many thick swords, reappear again? Trouble keeps cumming in the face of these ninja sluts and they just keep begging for more! The much anticipated release of Ninja 4 finally comes to DVD, so cum and see what's inside!

What is the mystery behind the hidden past of Shinjyo Reiko ' How did Mashiba Aya, who was killed by the parasite bug reappear again' Trouble after trouble comes in front of Yatsurugi Shinobu. The drama in the institute has finally come full circle.

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