>>280047838
It was just manipulation on Yoru's part in order to be able to finish the job on Pochita.
She wants people to fear her, but in Asa's case that turns into an inconvenience for her.
It's possible for the other party to be "unconscious" while the other one is in control. That's how Asa had her conversation with Yuko, without Yoru's interruptions.
Ch. 200 sort of implied that Asa just "zones out" now when Yoru takes over, out of self-preservation.