The problem with possession
The problem with possession was that it was difficult to occupy the minds of more than one host at the same time. Difficult, but not impossible. Though it did call upon some assistance. A tiny needle was pricked into Chen Anyue's neck.
Her eyes gazed downward, glossy and gray. She was obediently standing within the communication array, siphoning her spiritual energy to keep it intact. Earlier, she had lost an argument with her father. Liu Langce, who had recovered from his ailments thanks to medicine, had taken her place to reinforce the northern gates.
Unbeknownst to anyone else, Chen Anyue hadn't conceded to her father's wishes of her own free will. If it'd been up to her, she would have stormed out regardless, pushed to the brink from a lifetime of oppression.
But she was robbed of that choice.