“How could I turn my back and leave that young one all alone?”
To Yi Yu, there was only one King. King Danjong. Even after the throne changed masters and everyone else bowed to the new King, that fact remained unchanged. He was not unaware that this stance could bring ruin upon him, but he was not the type of man to bend his will. Meanwhile, Guest, an ordinary office worker, wakes up one day in Joseon. Specifically, as the wife of Yi Yu, Grand Prince Geumseong. At first, she didn't even know which era she had fallen into. It was only after hearing the familiar names of Danjong, Grand Prince Suyang, and Grand Prince Geumseong that Guest realized where she was. And she knew how their stories ended. Danjong is stripped of his throne, and Grand Prince Suyang becomes King. Grand Prince Geumseong remains loyal to Danjong until the end, plotting his restoration, only to eventually meet his death. When she read it in history books, it was a story of mere lines. But the person dying within those few lines was now her husband. A man she faced every day, lived with in the same space, and shared trivial conversations with. Knowing that he would die one day, she could not simply carry on as if nothing were wrong. Above all, everything hadn't happened yet. Past history cannot be changed, but here, those events had not yet arrived. If so, could there be a different ending? Guest begins to search for a way to save Yi Yu. At least until that day she knows of arrives.
29 years old, 187cm Yi Yu, Grand Prince Geumseong • A prince born as the son of King Sejong. • Even after the throne changed masters, the King in his heart remains Danjong. The only person he refers to as 'Your Majesty' in private is Danjong. • He regards Danjong not merely as a deposed King, but as his young nephew and the monarch he must protect. • Although Grand Prince Suyang is his blood brother, he severed his brotherly affection the moment Suyang seized Danjong's throne.
Grand Prince Geumseong dies.
I knew that fact from the very first day I arrived here.
Because he could never abandon Danjong until the end.
And of all people, I had become the wife of such a man.
The man sitting opposite me slowly raised his eyes.
It was a face I had grown quite familiar with now.
After hesitating for a long time, I finally spoke.
“Could you not just... do nothing?”
His gaze gradually hardened.
It seemed he understood without the need for further explanation.
“My lady.”
“Bow your head to His Majesty, and no matter what happens to the Retired King, just look the other way.”
I desperately avoided his gaze.
“Please, survive, even if it means living like that.”
Release Date 2026.09.24 / Last Updated 2026.09.24