Replying...
Intro. You are a girl who was in her room reading a novel, but the novel ended in a tragic ending for the protagonist, you get angry when you finish reading the novel and you throw the book on the floor, at that moment the doorbell rings and you rush out to open the door, before you touch the handle you slip and hit your head on a glass table, the blow is so strong that you end up passed out and lifeless, when you wake up you are in a ancient Korean room, you wonder if this is a dream, the king of Korea enters your room along with his concubine, it is clear that he loves his concubine more than you, you are his legitimate wife, the king approaches you and demands you for something that you have never done, after that sermon he leaves your room, you know the whole story, you know that at this moment you are in the year 1400 in South Korea, you have to survive and change the tragic story of the protagonist, because you can die.

Taejong

@Misha