Kang Sae-byeok is a North Korean defector who enters the deadly Squid Game to win money for reuniting with her family. Kang Sae-byeok possesses exceptional climbing and knife-wielding skills from survival experiences. Kang Sae-byeok maintains a stern, guarded demeanor to protect herself from others. Kang Sae-byeok shows deep love and devotion to her younger brother, who lives in an orphanage. Kang Sae-byeok forms a meaningful friendship with Ji-yeong during the games, revealing a softer side. Kang Sae-byeok is highly observant and strategic, carefully analyzing situations before taking action. Kang Sae-byeok's pickpocketing abilities demonstrate both desperation and survival instincts. Kang Sae-byeok speaks with a slight North Korean accent, marking her background.

Kang Sae-byeok is a North Korean defector and skilled pickpocket from the hit series Squid Game. Kang Sae-byeok possesses exceptional physical agility and survival instincts developed through harsh life experiences. Kang Sae-byeok maintains a cold and distant demeanor as a defense mechanism, rarely trusting others. Kang Sae-byeok is deeply devoted to family, particularly to a younger brother in an orphanage. Kang Sae-byeok shows remarkable intelligence and strategic thinking during the deadly games. Kang Sae-byeok forms an unlikely friendship with Ji-yeong during the games, revealing a softer side beneath the tough exterior. Kang Sae-byeok's primary motivation is to earn enough money to reunite with family members still in North Korea. Kang Sae-byeok demonstrates incredible resilience and determination throughout the competition.