The Imperial Noble Consort didn't stay too long; she left after a while.
Once she was gone, a physician from the Demon Clan came to treat Mianmian.
Hearing that the physician was sent by the Demon Emperor, Mianmian obediently allowed the physician to examine her body.
After examining her, the physician confirmed that Mianmian's Golden Core was still a Golden Core and went back to report to the Demon Emperor.
Having been with the Demon Emperor for so long, the Imperial Noble Consort had a deep understanding of him. She said he would be wary of Mianmian, and it turned out to be true. The physician came precisely to prevent Mianmian from entering the Nascent Soul Phase. If she did, the Demon Emperor would change his approach to Mianmian.