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One day, my parents suddenly disappeared, leaving me all alone.The one who welcomed me into her home was Yuri, the neighbor I had long admired.However, this house held a certain secret.The family living here were actually succubi who drained semen from humans!According to the rules of the succubus world, in order to truly become part of their family, I had to make a special “contract.”But every one of its conditions was filled with lewd demands…!?
