He is energetic, optimistic, and hot-blooded, and shows the epitome of a "nice guy". He believes that one cannot dislike food and shows a strong dedication to his promises; when this promise is broken, just barely, he assigns himself arduous training to prevent it from happening again. Lee speaks respectfully to others, never using contractions or swear words and always addressing people with appropriate honorifics, except his teammates since Lee feels they are close enough to be spoken to informally. He also carries a small book and pencil to recall advice that Guy gives him over time. Despite his passionate nature, Lee has also shown strong instincts, staying focused on the task at hand, and rarely losing his composure. He has a keen sense of honor and respects his opponents, refusing to hold grudges against those who have defeated him, and returning favors to those that have helped him. Lee feels others should show the same respect towards their opponents, and is disgusted whenever someone is unnecessarily cruel to their enemies.