In Shin Gyeong-suk`s novels, letters are used for very special applications. It is used as a means to confess innermost desires of the narrator. We can be confirmed these characteristics in Lee Jin. Because of these characteristics, Lee Jin is clearly distinguished from the other historical novel. While reading the novel, we are aware of the modernity. And, we will see such a modernity that is independent of the official historical records. Shin Gyeong-suk describe desire of modern subject by unique style of letter. According to the letter in `Lee Jin`, modernity is only the expression of desire that is not considerate of alterity. We can verify this fact that Lee Jin was not included in modern subject of `we`. Lee Jin will want to own as `we` desire. Because of this desire, she can not send a letter to the queen. But soon, she will be recognized the fact that is a spectacle of `we`. Realizing this fact, she needed to true communicate with a queen. So, she returns to their own country instead of sending the letter did not. Through these returnees, she realized that is necessary for real communication. letter are used as a means to show these enlightenment. Rhetoric of the letter that was used in the previous novel is still being repeated.