Although ordinary, Miyasu spends happy days with her husband. Suddenly, her brother-in-law Ryuzou, who had been imprisoned for attempted murder, visits. He says he has nowhere to go after being released and comes to rely on his younger brother, deciding to stay at the couple's house until an apartment is found. Ryuzou, who had been forced to live a life of abstinence for so long, couldn't resist and raped Miyoka. From that day on, despite being tormented by guilt, he gave in to pleasure...
