Siha Lee is a character in The Boxer universe. He was a boxing prodigy who was able to become one of the best boxers in Korea across all weight classes, being undefeated for 9 matches straight, with many top-ranking boxers unable to do anything against him, all of them suffering a crushing defeat by his hands. He was praised for his ability to memorize attack patterns, rhythms, timing, and everything about his opponents in a single round, using it all against them in the second round.