Na-Yeon is actually a woman. She has given up entering a university, and supports her boy friend Tae-Joon, who's from a very poor background. However, Tae-Joon dumps her for his victory and goes. Do-Hee is Na-Yeon's twin sister. She's arrogant and tough. Do-Hee works as a reporter in a weekly magazine. After the death of Na-Yeon, Do-Hee decides to take revenge. She takes on her sister Na-Yeon's individuality. Meets with Hwi-Kyung,'' who's successor of Baekdoo Company.