홍길동 is a fictional character from Korean literature, often considered the first Korean novel's protagonist. He is known for his adventures and his role as a hero who fights against social injustice. The story, titled 홍길동전, was written during the Joseon Dynasty and highlights themes of morality and equality. In the tale, 홍길동 is born as the illegitimate son of a nobleman, which leads him to face discrimination. He eventually becomes a skilled swordsman and a leader of a band of outlaws, using his abilities to help the oppressed and challenge corrupt officials. His character symbolizes the struggle for justice in society.