Reading another comment... somebody reports her...who and to whom? Can you tell?
No, after that.....where she stabs her former slave master...and since, she doesn't have proof of his crimes...to the ministers...it looks like she stabbed an innocent citizen and thus, penalize or petition against her!!!
That the masked man is Gu Qing...that slight glimpse which I saw from his faint scarf/veil....the angle of the chin and its leaness.... definitely looked like that of Gu Qing!!