Yeon was determined to expose the company’s external matters which were being kept hidden by the mysterious and transparent woman named Chae Yeon. In her pursuit for the truth, Yeon found herself serving time in prison. But this did not deter her from seeking revenge on Chae Yeon. She was willing to use any means necessary, disregarding the consequences, to get her retribution. Driven by her anger and determination, Yeon chose to embrace the same path as the transparent woman and become one herself. However, this decision would lead her down a dark and dangerous road filled with secrecy and risk. The suspenseful and thrilling journey of revenge starts to unfold, leaving Yeon with no choice but to move forward despite the challenges that lie ahead.