After her husband's business fails, leaving them with overwhelming debt, the Kakimoto couple lose their home and livelihood. Desperate, they turn to their husband's old friend, Atsumi, for help. He hires the husband as a driver and his wife, Yoko, as a maid, allowing them to live and work at the Atsumi residence. But their new life proves far more oppressive than they imagined. As they struggle to hold onto their bond and find hope in their survival, Yoko is drawn into a world of BDSM and infidelity, tested by the cruel desires of her employer and the painful reality of NTR.