Haruki Sato is an office lady working at a major textile manufacturer, married to a man who serves as department chief. She is locked in a rivalry with her colleague Yamada over a presentation for a new women's lingerie line. Desperate to see her own project succeed, Haruki becomes consumed with defeating Yamada. However, when Yamada is suddenly transferred and realizes Haruki was behind the move, he flies into a rage. He throws water on her, capturing images of her soaked, translucent clothing. Using the photos as leverage, Yamada forces Haruki to wear the lingerie he designed and invites male coworkers to test the fabric's texture, allowing them to thoroughly grope her drenched body. In the process, she not only proves the effectiveness of her own design but also discovers new, unexpected possibilities.