When the crown prince is killed, his twin sister assumes the throne while trying to keep her identity and affection for her first love a royal secret.

Park Eun-bin

Lee Hwi

Rowoon

Jung Ji-woon

Nam Yoon-su

Lee Hyun

Bae Yoon-kyung

Shin So-eun

Choi Byung-chan

Kim Ga-on

Lee Pil-mo

Ye Jong

Baek Hyun-joo

Court Lady Kim

Ko Kyu-phil

Eunuch Hong

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