Yumi, the wife of a company president, was known for her strict demeanor toward employees, earning her the nickname "The Demon President's Wife." One day, her home toilet breaks down, pushing her to the brink of desperation. Unable to hold it any longer, she accidentally urinates in the living room—only to be caught in the act by her subordinates. Blackmailed with the compromising footage, Yumi is forced into submission as they take advantage of her voluptuous body. Powerless to resist, she's further coerced into urinating on command, enduring repeated, humiliating accidents in shame.