Da-Kyeong, an elite special agent, felt lost after losing her boss, who was like a father to her. After realizing that all of this was the doing of “Chairman Lee”, there was nothing she wouldn’t do to get revenge. However, it is not easy to approach the man behind the “Sayoung Group.” Just when she was about to give up, she got her hands on information about Chairman Lee’s son. For her final mission, Da-Kyeong goes undercover at the school known as "Chaebol High"… (Source: Naver, translated)