In an alternate-reality South Korea, where a constitutional monarchical system prevails, Oh Sunny, a musical actress, becomes the empress of the country. Thus begins a dispute for power in the royal palace. Nothing is what it seems, and Oh Sunny is ready to fight until the end to uncover a mysterious homicide within the royal palace, fighting to protect those she loves the most and obtain happiness.
Jang Na-ra
Oh Ssu-Ni
Choi Jin-hyuk
Na Wang-shik
Shin Sung-rok
Lee Hyuk
Lee Elijah
Min Yoo-ra
Shin Eun-kyung
Empress Dowager Kang
Oh Seung-yun
Yi-Yoon
Oh Ah-Rin
A-Ri
Park Won-sook
Grand Empress Dowager Jo
Lee Hee-jin
Princess Soo-jin
Shin Go-eun
Queen So-Heon
Yoon Da-hoon
Oh Geum-Mo
Stephanie Lee
Oh Hel-Ro
