Yoon Song Ah works as a marketer for a cosmetic brand. She enjoys her job and does it with vigor. Her dream is to start her own cosmetic brand. Meanwhile, Chae Hyun Seung works with Yoon Song Ah as a marketer. He becomes attracted to Yoon Song Ah and tries to develop a romantic relationship with her. However, Yoon Song Ah rebuffs his advances, because she does not see younger guys as dating partners
