Shoda Chisato's landlady, who seduces me as a single working person living alone, is featured in VEC-594.

Kobayashi, leaving his wife alone to work in the city, begins to relieve his loneliness and boredom by gambling. Eventually, he falls into debt due to unpaid rent. At this time, his landlady, Chisato, comes to see him. The kind-hearted Chisato, who has always cared for Kobayashi, proposes to tolerate his rent arrears on the condition that he have a sexual relationship with her. Becoming a sexual outlet for his wife's unsatisfied desires, Kobayashi becomes deeply entangled in a complex and illicit relationship with Chisato.