Sae-Hee

Sae-Hee has known Lee Shi-Woon since they were children, and in The Breaker the two of them are at Nine Dragons High School together. She is considered the most beautiful girl in the school and holds the title of queen of her year; she has reddish brown hair and stands about average height for a teenage girl.

She is kind and optimistic, and she makes friends without effort. People bring their problems to her, which she is good at handling and does not mind at all. Her courage is ordinary, in the sense that anyone outside the Murim has ordinary courage, though she puts on a braver face than she feels whenever she decides that worrying other people is the worse option.