A spy named 'Yoo Hye-won' must do spy work amidst the power struggles of Wired Airlines. Hye-won, who grew up in an underprivileged environment, successfully graduates from school and gets hired at a large company thanks to Wired Airlines' scholarship program. Wired Airlines' vice president, 'Ha Ji-seok', tells Hye-won that it is time to repay the company's favor and sends her as a spy to report on every move of Ji-seok's cousin, 'Ha Tae-beom'. Tae-beom also knows that Hye-won is Ji-seok's person, but he willingly keeps Hye-won by his side and harasses her as if it were a favor.