"I will definitely pay back the money my husband borrowed..." A man from the underworld came to the hospital where her husband was hospitalized to collect a debt. To Saki, who was devotedly caring for her, the man proposed a part-time job at an underground casino as a way to earn a lump sum of money. "With your beauty and body, you can make a lot of money in no time," he said, and took her. However, at the illegal underground casino, she was forced to expose her breasts, wear an embarrassing uniform that was almost naked, and entertain big-time customers. She was even forced to perform extreme sexual services... A busty married woman who was forced to become a sex slave exclusively for the underground casino, with an inescapable debt hell and humiliating physical service.