The Promise

The story, without spoilers

Na-Yeon is a bright woman. She supports her boyfriend Tae-Joon, who is from a poor background, and has even given up entering a university. But Tae-Joon dumps her for his success and goes with Se-Jin, who is a granddaughter of Baekdoo Company president. Do-Hee is Na-Yeon’s twin sister. She is arrogant and tough. Do-Hee works as a reporter at a weekly magazine. After Na-Yeon’s death, Do-Hee decides to take revenge. She takes on the identity of her sister Na-Yeon. Do-Hee then meets Hwi-Kyung, who is successor of Baekdoo Company.

Cast & characters

Lee Yu-ri

Lee Na-Yeon / Baek Do-Hee

Song Jong-ho

Park Hwi-Kyung

Park Ha-na

Jang Se-Jin

Seo Jun-young

Kang Tae-Joon

Lee Jong-won

Jang Kyung-Wan

Kim Hye-ri

Park Yoo-Kyung