The big-titted sisters were working as lingerie models, but with no income coming in, they struggled to make ends meet. They barely got by each day, relying on part-time jobs at cabarets to survive. One day, they borrowed money from the agency president to cover their costume expenses. However, the very next day, the president suddenly demanded immediate repayment, and their situation took a drastic turn for the worse. As a result, the sisters' lives changed forever.