Minami is living a happy life, her boyfriend just proposed to her. At that time, his younger brother suddenly came to visit him after not seeing him for 5 years. Even though his brother asks him to see what Minami's life is like, he doesn't believe him, and when he asks, he learns that he owes the gangster 100 million yen! The amount of money is too large, Minami cannot reach it in such a short time. Even his brother knows and doesn't want to get involved, he'll find a way to escape. But where could he hide from the gangsters so easily? This is Minami's favorite younger brother, her only relative, so Minami cannot stand by and watch. He and his brother came to talk and begged the boss to give him more time. But he couldn't wait that long. Looking at Minami's extremely attractive body, he immediately thought of wanting to have her. After thinking it over, she immediately agreed that the two sisters would be his mistresses for ten days in exchange for their freedom. Her brother definitely did not agree, but because there was no other way, Minami had to accept. She is only allowed to wear a set of sexy panties, ready to suck cock and open her pussy whenever she wants, even in front of his men! During these ten days, Minami's body was always covered with semen, she felt embarrassed, but her body gradually became more erotic due to the extreme pleasure. She wanted his cock more and more, she couldn't live without him! He ignored his fiance, he ignored his beloved younger brother. Even though ten days have passed, she doesn't want to leave, she wants to stay here to be his wife, enjoy his happiness…