Shittori jukujo: Misoji no hirusagari

Original title: しっとり熟女 三十路の昼下がり

Teruo had reached retirement age, his children were grown up and independent, and his wife, Shizuko, was infatuated with a Korean actor and paid him no attention, leaving him to live a lonely life. His only pleasure was indulging in self-gratification while imagining a lewd affair with his former subordinate, Kumi. Just then, Kumi contacted him, wanting to meet. She invited him to join a flower arrangement class she was running with Yoshimi, a senior from her student days.