Aki, who moved to a company apartment when her husband started working at the head office, felt anxious in a place where she didn't know what to do. "As long as I have my husband, everything will be fine." Just as she was about to build a new life with that thought in mind... Aki meets Ayumi, who lives next door. She is the same age, her husband works at the same company and is a full-time housewife. The two have a lot in common, so it didn't take long for them to get along. Then, one afternoon, when Aki was complaining about the lack of "stimulation,"Ayumi took a certain action...