On ch11, when Miesa talked why was it zoomed in to the black haired girl? Who’s she??

I assume it's the emperor's wife or concubine. I'm assuming she was shocked either because miesa shouldn't be able to talk / understand. Or because she might know miesa is faking and is surprised miesa would defend MC. I think it's the first one tho

Yeahh these are my guesses as well, but just feels like she has a role because they gave her like two frames for that reaction