Everything you need to understand or teach Some Prefer Nettles by Jun'ichirō Tanizaki.
Kaname and Misako are a Japanese couple living in Japan in the 1950s. They have been married for ten years and have a son named Hiroshi. For a long time, they have been considering getting a divorce, but they cannot seem to make up their minds.
Kaname and Misako try to keep their marital problems a secret, and in fact only confide in Kaname's cousin, Takanatsu. Takanatsu can hardly believe how long the two of them procrastinate deciding what to do and when to do it, and urges the couple to tell Hiroshi what is going on. Takanatsu secretly breaks the news to Hiroshi, and then tells Kaname and Misako that he will not visit them any more until they have resolved the matter. Kaname has lost interest in Misako sexually after about two years of marriage, although he visits prostitutes once in a while. Two years ago...
Some Prefer Nettles Lesson Plans contain 125 pages of teaching material, including: