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.
Elenco: Park Eun-bin , Rowoon , Nam Yoon-su , Bae Yoon-kyung , Choi Byung-chan , Lee Pil-mo , Baek Hyun-joo , Go Gyu-pil , Jung Chae-yeon , Bae Soo-bin , Han Chae-ah , Yoon Je-moon , Son Yeo-eun , Lee Il-hwa , Kim Seo-ha , Park Eun-hye , Heo Jung-min , Kim Jae-chul , Park Won-sang , Jung Jae-sung , Jang Se-Hyun , Lee Soo-min , Choi Myeong-bin , Ko Woo-rim , Choi Ro-woon , Kim Geon .