Kyoka Tachibana, a stay-at-home wife for four years, was living a peaceful life while waiting for her husband, Yôsuke, to get a raise. However, Yôsuke's unilateral decision to prioritize a client's order at work caused problems, jeopardizing his career advancement. To maintain the deal, Yôsuke's boss, Sakawa, asks Kyoka for a one-time favor, which plunges her into a deep pit of carnal desire...