A period drama-style erotic novel series set in the Taisho to Showa eras has gained popularity among middle-aged and baby boomer generations, as well as 30-something salarymen. This installment tells the story of Oyuki, a young, proud, and beautiful woman working in the red-light district of Mukojima, across the Sumida River, renowned for delivering ultimate sexual pleasure to her male clients. Centered on her pure love affair with a customer, the narrative explores the erotic lives of women from diverse backgrounds—such as the former wife of a bankrupt university professor, a lush and mature woman sold from a poor farming family in Tohoku, and the petite, sharp-featured madam of a brothel. With a richly detailed script, the film portrays the genuine emotions and human dramas of these courtesans. Starring Miki Yoshii and seven other accomplished actresses, this is a full-length 240-minute production from Nadeshiko's Japanese Artistic Romantic Library series.