Lu Enxue, a seemingly weak but actually quite powerful graduate of a third-rate university (played by Choi Kang Hee), has applied to many companies but has failed to get hired. However, always optimistic and forward-moving, she finally lands a temporary position as the secretary to the head of a large conglomerate. Although it's a temporary job, Enxue is very happy and looks forward to her new job and life. On the other hand, the boss she serves, Che Ji-hyun (played by Ji Sung), seems extremely unreliable, as he has a stunning appearance and exceptional abilities but takes a very perfunctory attitude towards work, constantly making various unreasonable demands on his new secretary Enxue. Surprisingly, Enxue fulfills all of his demands, leading Ji-hyun to view her in a new light. Meanwhile, Ji-hyun's gentlemanly and capable cousin, Che Woo-hyun (played by Kim Jae-joong), has been caring towards Enxue, which wins her affection. As Enxue works hard in her career, her relationships with Ji-hyun and Woo-hyun become increasingly complicated...