The story revolves around a mother, Yukie Kitazawa, and her two adopted daughters, Rumi and Tomoko. Yukie has a car accident while her husband is away on a business trip, and is forced to repay the other party, a young man named Taketo Nogawa, by sexual means. Taketo and his father, a powerful and corrupt business owner, blackmail and have their way Yukie, Rumi and Tomoko.
愛姉妹
Ai Shimai
Ai Shimai: Futari no Kajitsu
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