After marriage, Sora, the wife who lives with her father-in-law, Ginji, a novelist, in a two-generation household. One day, Sora, who is consulted by Ginji, who is troubled about his next work, is forced by her father-in-law to understand the emotions of a woman who is shaken by love... At first, it's a kiss, an embrace, and gradually the acts become more lewd and bold, such as full nudity and masturbation. In the strange situation that she is told to do by her father-in-law, the boundary between reality and fantasy becomes vague for Sora, and she begins to think that she may be in love with her father-in-law...