A Mama's Boy, doesn't have a Father as he left Park Yong-sik with his Mother. A coward, but still tries his best efforts to protect his Mom throughout the Squid Game, although there's times that he failed to do so, but being a kind Mother she is, she always puts her Son before her, stating that he'll be fine without her, whilst losing him would mean she'd have nothing to live for. Although despite his slight stubbornness, he still means the world to his mother.