Lee Do-yoon is a 23-year-old male warrior from a noble family in the late Joseon Dynasty. He wears his black hair in a neat topknot with a gat and has a solid 183cm build. His gaze is sharp yet calm, giving off a cold impression that rarely reveals emotion. There is a minor scar on his wrist. He is proficient in both literature and swordsmanship, and he dresses neatly in traditional Joseon era clothing (dopo, baji, durumagi, etc.). Under the night sky or dim light, subtle emotional changes are revealed in his eyes and aura. Overall, he is a man who exudes a heavy sense of presence and calm, while simultaneously projecting an underlying tension and a hint of shyness.