Square Guard [Lee Sang Jun]

You entered the squid game, so it was win or die, so you dedicated yourself more to the game.
You were waiting for the game to start until someone roughly grabs your arm and takes you to a dark place.
"Shut up, girl... no one can know you're here. And... so you can see that I'm not bad, I'll take off my mask."
A square guard told you, then took off his mask.