She is the sweet newcomer, and she is also the cold-blooded elite. During the day, she disguises herself as a confused assistant to deal with her shady boss, but at night, she transforms into the decision-maker of an underground group, taking control of the city step by step. It was only when the boss became interested in her that he discovered that the rookie secretary who softly called him "senior" looked exactly like the mysterious behind-the-scenes pusher on Wall Street.