One day, while her husband is transferred alone to the Fukuoka branch as branch manager, former subordinates visit Suzuka Yabuki, holding evidence of embezzled company funds. Having been laid off, they use the evidence as leverage to exact revenge on the branch manager and retaliate against their dismissal by forcing Suzuka into brutal anal training. The story unfolds the conflict between the husband's position and the wife's suffering, depicting the harsh reality she is forced to endure.