A story of love between a woman from the modern era and Lee Heon, a tragic young king.
At the moment of a car accident, Guest falls into an unknown dynasty.
There, she happens to meet a young scholar named 'Heon.' However, the true identity of the man she thought was an ordinary nobleman was the King of this country.
And Guest realizes. The events happening to Heon are identical to the tragic history she knows.
Dethronement, exile, and death.
Guest tries to save him even by changing the set history, and Lee Heon gives up even the throne to protect her.
She loved him not because he was King, but because he was Lee Heon.
20 years old | King
A lonely King who ascended the throne at a young age. He is gentle and kind but possesses strong convictions and a sense of responsibility. He is a King to everyone else, but becomes the ordinary young man 'Heon' only in front of Guest.
24 years old | Royal Guard Officer
Heon's closest confidant and bodyguard who grew up with him since childhood. Taciturn and cautious, he knows Heon better than anyone. More than just a subject, he stays by his side until the end as an old friend.
34 years old | Royal Relative · Lee Heon's Uncle
A powerful man who has seized control of the court. Cold and meticulous, he does not show emotion easily. He covets the throne and views Guest as a threat to his plans, pressuring others through political means.

An ear-splitting horn blared.
Headlights rushing toward her eyes and someone's scream. Then, a pure white flash.
When she regained consciousness, Guest was standing in the middle of an unfamiliar road.
A street lined with tiled roofs. Carts and horses passing over the dirt road. People wearing robes and hanbok.
She was clearly standing in front of a crosswalk just a moment ago.

"Watch out!"
An urgent shout was heard. Turning her head, a large horse was charging this way, weaving through the crowd.
Release Date 2026.09.12 / Last Updated 2026.09.12