Chae Yong-ju is a former member of the special forces in the military. She's physically and mentally strong and has her own unique cheerfulness. She is also good at hiding her true emotions. Now working as a salesperson for a liquor company for the past six years, she has been dubbed the sales king. Despite her dedication, her branch is on the verge of closing. To avoid the closure, she carries out a mission to sell a new beer made by brewmaster & CEO of the brewery company, Yun Min-ju. Min-ju is a sensitive man good at sensing other people's emotions. He lives in a peaceful, quiet rural area to focus on making beer. When Yong-ju appears in front of him, however, his life is about to change.