Nami Kuroki and her husband run a quiet hot spring inn in the Kanto region. Nami used to work as an office lady before marrying her former boss, Kenta, and taking over her husband's family business. However, their financial situation is dire, with fewer guests coming each day. Their troubles are worsened by their servant, Saji, a man inherited from the previous generation, whose increasingly hostile attitude adds strain to the couple's life. One day, Takimoto, a loan shark to whom Saji owes money, demands immediate repayment. Desperate, Saji devises a plan to use Nami's voluptuous body—her proud big tits and thick ass—as a bargaining chip. He forces her into degrading sexual servitude, making her writhe in wet, desperate ecstasy. Without knowing whose seed she carries, Nami ends up pregnant. Unseen by others, she is made to wait, her pussy dripping in arousal, subjected to relentless, lewd treatment. This deeply layered story blends NTR, cuckolding, tragic eroticism, impregnation, big tits, creampie, facial, threesomes, foursomes, and a pregnancy ending, delivering both intense drama and explicit eroticism.