A married woman named Yui leads a lonely life due to her husband's absence. To fill the void, she decides to take up a part-time job as event staff. Although the ad promised easy work distributing flyers while wearing a costume, she soon discovers that it's quite strenuous. Fortunately, her co-worker Takeda helps her out during their breaks. One day, while sweaty and disheveled after forgetting to change clothes, Takeda takes advantage of the situation...