Yuki decided to live in her husband's parents' house as her husband, Yuichi, took over the family's company. Her mother-in-law, Ikumi, doted on Yuichi, and she was strongly against Yuki. Still, her father-in-law, Taro, was lustful at the appearance of Yuki who devotedly supported Yuichi. Then, one day, Yuichi and Ikumi weren't there, and Taro, who was alone with Yuki, pushed Kayuki down. After that, Yuki was afraid of Taro and avoided him, but Taro toyed with Yuki's body everywhere despite the presence of his girlfriend Ikumi.
