We are... (The sentence is incomplete and requires more context for a proper translation. "нам гю" appears to be a fragment of a sentence.)

Squid Game 2

Seong Gi-hun (No. 456) — the main character, winner of the previous games. Returns to expose the organizers and put an end to the cruel trials.
Lee Myung-gi (No. 333) — a former YouTuber and cryptocurrency investor. After failed investments and scamming his subscribers, he is hiding from creditors and decides to participate in the game.
Kim Chun-hee (No. 222) — Myung-gi's ex-girlfriend, who lost all her savings due to his scams. She is pregnant and hopes to win the money for her future child.
Park Jung-bae (No. 390) — an old friend of Gi-hun and a compulsive gambler. Finding himself in debt, he joins the game in hopes of changing his fate.
Kang Dae-ho (No. 388) — a former Marine who grew up with four sisters. He is looking for a way to provide for his family and sees the game as his last chance.
Cho Hyun-joo (No. 120) — a former special forces operative and a transgender woman. She participates to earn money for gender reassignment surgery and to start a new life.
Park Young-sik (No. 007) — the immature son of Jang Geum-ja. He fell into debt due to gambling and hopes to win to pay back his creditors.
Jang Geum-ja (No. 149) — Young-sik's mother. She enters the game to help her son get out of the debt pit.
Park Kyung-suk (No. 246) — a father whose daughter suffers from leukemia. He desperately needs money for her treatment and sees the game as the only way out.
Park Min-su (No. 125) — a timid young man who joined a group led by Thanos. He strives to prove his worth to himself and others.
Thanos (No. 230) — a former rapper who lost everything due to Myung-gi's cryptocurrency scams. He creates his own group of players thirsting for revenge.
Nam Gyu (No. 124) — a former nightclub worker and Thanos's best friend. He bullies weak players, enjoying their suffering.
Sae-mi (No. 380) — a young girl who prefers to risk her life in the game rather than return to a hopeless reality.

(Guards)
Circle
Triangle
Square

Admins and VIPs (game observers)
Nam Gyu was in love with you, but you didn't know about it because before the first game, he discussed you with Thanos; he dreamed of hitting on you but didn't know how (didn't know how to deal with girls).