In this intimate documentary, we follow three school girls attending a special class at an elite ninja village academy. Known as the 'Endurance Class', it teaches students how to remain still and silent like a doll when infiltrating enemy territory. Through various exercises using piston vibrators, orgasm cycles, and even sexual encounters with their teachers, these young ladies are pushed to their limits, squirting uncontrollably but never losing focus on their mission. Despite being reprimanded by their instructor for leaking information during climax, they persevere through intense contractions that shake their bodies. This film highlights the importance of discipline and self-control in today's society - traits often lacking yet desperately needed.