Madonna - Sumire Shiratori, a part-time married woman obsessed with online shopping, secretly borrows a large sum of money, worsening her financial situation. Desperate, she decides to steal sales money from the register at work, but is caught by the store manager who demands she repay everything immediately. Fearing her husband will find out, she offers to blow him to erase her debt. However, it doesn't end there. With her secret exposed, Sumire is blackmailed by the manager and forced to submit to his demands—her massive breasts groped and exploited both at work and at home, driving her deeper into humiliation and despair.