Se-mi decided to enter Squid Game to win money to cover her debt. She manages to survive Red Light Green Light, and when they had their first vote, she voted to continue the games. When finding teammates for the second challenge, she took interest with Min-su. During their discussion, Thanos and his team approached them and ask to join their team. After they paired, Nam-gyu was being rude to Min-su and she took no time to defend her friend. She made comments on Nam-gyu reliance of drugs, calling