Yusa's company was struggling due to competition from other firms and tax increases, leading to deteriorating management conditions and poor performance. While they usually hired models for their annual new product presentations, this year they canceled the arrangement as part of cost-cutting measures and layoffs. Just then, an unexpected trouble befell Yusa, forcing her to become a lingerie model to escape the danger… In the despicable operations of a black-hearted company, the innocent-faced OL with a beautiful butt becomes prey to harassing employees！！
