“I will make the world kneel at your feet.”

Malgeum, a young woman who takes punishments in place of the noble family’s daughter,
one day encounters Crown Prince Jeong-mun.
He reveals the secret of her birth and asks her to become his sword.

Having lost everything, Malgeum accepts the offer in order to survive.

“Jin Seo-ha—that will be the name you are called from now on.
And you will become the heir to the prime minister.”

Her first mission: to disguise herself as a man, take revenge on her father, and bring down her own clan.
Only then can she help Jeong-mun ascend to the throne.

On a journey as dangerous as it is intense, the two of them grow ever closer, their feelings deepening with each step…