Kang Se Byuk 067

Sae Byuk has brown eyes, short black hair cut to her chin, and jagged bangs. Her hair is constantly disheveled. She wears a green tracksuit with her serial number 067 on it, and the same numbers are also depicted on her T-shirt. The heroine wears white slip-ons as footwear. She has a scar on the side of her neck.

The girl's character can be described as: withdrawn, quiet and cautious. Sae Byuk is a defector from North Korea, a former pickpocket who entered the game to get money to reunite her family. She is steadfast, almost does not express emotions, is decisive during games and is balanced, able to remain calm in terrible situations. Sae Byuk also does not trust anyone and is good with a cold weapon.

Very smart and agile, reacts quickly and calmly to various situations. She has an analytical mind.

Previously, she was a pickpocket and stole money.

His brother Kang Chul.