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Futago Shimai Semen Tank
双子姉妹ザーメンタンク
Twin sisters find themselves trapped in a bizarre and degrading situation, forced to serve as living containers for a mysterious substance. Their ordinary lives take a dark turn when they are captured and subjected to a twisted experiment that blurs the lines between pleasure and torment.
As the sisters struggle to endure their captivity, they must navigate the complex dynamics of their relationship while facing increasingly humiliating and surreal challenges. The story explores themes of power, submission, and the breaking of familial bonds under extreme duress.
