One day, a happy married life fell apart. The husband, who runs a small factory, was betrayed by a subordinate he trusted, leaving him with a huge debt and putting his business at risk of collapse. The husband grew more and more exhausted with each passing day, but one of his clients, Oshima Industries, approached him and offered to continue their business. At last, signs of improvement appeared. However, the president of the company visited while the husband was out and told him something he found hard to believe: "If you want to help your husband, become my slave for the weekend."