Miki married Taizo, the president of Sato Real Estate, and now lives with her brother-in-law, Taku. Taku begins to feel something akin to hatred towards Miki, who acts as if she has taken over the Sato family. Taizo arranges for her to go on a business trip, and while she is alone, he forcibly rapes Miki. Taku threatens Miki, saying, ``If my brother finds out about our relationship, we'll definitely get divorced!'' What is the fate of a beautiful wife who turns into her stepbrother's sex slave? ?