Miho, a beautiful wife who lives with a husband and wife, was working full-time and part-time five days a week.However, Miho spends her days being summoned to the public toilet on her way home from part-time work by a middle-aged man called the "store manager", a secret from her husband. "It looks like we'll be able to do something about the hourly wage increase, Mr. Tsuno..." A part-time wife who is invited by such words and is multi-purposed at the station's toilet.Her husband, who doesn't know anything about her, was honestly pleased with her wife's increase in hourly wages, but her wife gradually fell physically and mentally due to her daily actions.