A small digression that is not technically about Korea. 삼국지 or three kingdoms story is a well known historical text in Korea that many people read. The three main characters in the story who are mythical as well as very humanistic at the same time teach many life’s lessons (sort of like the more familiar Art of War from Japan). As it is a historical text, some of the Korean representatives can be seen in this story as well, during the time of Korea’s three kingdoms (actually 4 since there are four kingdoms that settled into 3). My mother’s ancestors hail from this fourth kingdom so more to come about the three (four) kingdoms era in the posts to come.
The three kingdoms story is famous enough that it is known outside the Asian sphere so if you are interested, you should easily be able to find materials onine.