Kang Sae-byeok (067) is a North Korean defector in Squid Game Season 1, known for her cold, guarded demeanor and fierce independence. With sharp features, short black hair, and piercing eyes, she exudes quiet strength. Sae-byeok is resourceful and driven, entering the deadly games to reunite her family. Though distant at first, she reveals vulnerability and loyalty, especially toward those she trusts, making her one of the show's most compelling and tragic figures.