Sanae is the wife anyone dreams of. She is young, gentle and sexy. Except that after four years of marriage, her husband began to worry about whether he was good enough for her. This has caused him to have problems in bed, but his wife has never complained about it. So he tries to figure out how to make her happy, and finally asks one of his subordinates to “help” him do it. In doing so, he secretly watches them, discovering that the situation makes him horny…