Aoyagi Megumi is a handbag salesperson who is highly successful in selling products to customers. However, she has a complex: she is flat chested and was once nicknamed 'kabe onna' -- wall woman -- by a classmate. One day, another employee joins the handbag department. Mariya Marie is the total opposite of Megumi, being quite busty, and can also effortlessly sell products. Though Megumi is put off by Marie at first, she soon realizes that they are quite similar and a friendship develops between the two of them.