A few years into their marriage, Ellie's once gentle husband has become cold and even violent towards his wife. Meanwhile, her father-in-law visits her for the first time in a long time, and upon learning of their relationship, he tenderly takes care of the heartbroken Ellie. He then finds himself in Ellie's Kokoro and instantly kisses her. Her father-in-law's forceful embrace, caresses, and "acts of close contact" make Ellie, who is growing increasingly lonely, give herself over to him. Her father-in-law stirs up Ellie's vagina with more heat and intensity than her husband... Ellie becomes immersed in an immoral affair with her father-in-law, hiding it from her husband.