Boin no o-yado: Jukujo dai enkai!

Original title: ボインのお宿　熟女大宴会！

Directed by Yoshikazu Katō

The eldest and youngest sisters, Junko and Rie, run the inn "Hamaya" in a rural town, but the inn is struggling financially. One day, Mayumi, the second sister, who had been missing, suddenly returns home...