792SGKI-007 Prefectural Shinobuhara [Piston Vibe] Girls' School

We follow three high school girls who attend a school in a ninja village that offers a special class. It's an extracurricular class called "The Class of Patience." "When a ninja infiltrates enemy territory, they sometimes have to pretend to be dolls and get past the enemy. To do this, they must not move no matter what, and they are not allowed to make a sound." They train their minds to remain silent through torture. They squirt violently during sex with a piston vibrator, an orgasm bicycle, and even with their teacher, but he yells, "Don't leak! Are you going to leak information even in enemy territory?" Their immature bodies tremble with continuous vaginal spasms as they endure! What is most lacking in modern society is the spirit of a "ninja."