Most people have left, indifferent to what's going on (after all it's a casino, who cares about the slaves in the arena, right?) but her. She is shouting as loud as she can so that the boy can find the courage to get up.
And I was wondering while watching this scene, why doesn't Xiang Liu do something? He had been in the boy's position. If anything he can relate to him the most. Why doesn't he scream at the top of his lungs? Is it because he is indifferent as the rest of the people around them? The way he looks at her proves otherwise. He is stunned. Who could care about a slave? Who could care about him?
He sees her genuine concern and smiles
When the boy gets up, he is happy. Maybe he sees himself in that boy. Not unwilling to help him, but too nihilistic to hope. He may even thought it was best for the boy to die in the arena. Because what life was waiting for him outside? Could he be entirely free? Or was he going to be bound by further responsibility and duty? (Like he is)
And then. Oh then she hugs him. His face *i am screaming* I mean look at him. He did not expect that at all. He's looking at her all "lady, what are you doing, I am trying to keep a distance here, you can't just hug me and melt me like butter."
But he can't help feeling happy when she is happy. He can't help feeling even for a moment in his imagination that he is freed too from his shackles and it's her who saved him.
How it would have felt if he was truly free.