Han Jeong-woo (Jo Jung-Suk) is a star pilot with unparalleled flying skills, renowned enough to make appearances on popular TV shows. However, a single mistake causes his life to unravel overnight, leading to the loss of his job and reputation. With no airline willing to hire him due to being blacklisted, Jeong-woo, desperate and out of options, adopts his younger sister's identity and finally secures a new job as a woman. Just as he begins to hope for a fresh start, he faces a new set of unexpected challenges. Can Jeong-woo's dream of soaring high once again become a reality?