Ayaka and Saki are transfer students sent to "Girls Farm Adachi 4", a training facility that teaches girls how to have sex. The two of them possessed a transcendental technique that drives men crazy. The male employees are captivated by it, rival classmates oppose it, and the order in the farm collapses. Feeling suspicious, Yuko, the farm master, investigates the past of the two and learns of a secret plan. It was a forbidden human experiment that medically remodeled the girl's body and created the ultimate SEX machine...

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