The soundproofing in Empress Nuwa's Palace is quite good.
But in front of Empress Nuwa, even the best soundproofing is as good as nothing.
It all depends on whether she wants to listen or not.
Generally, Empress Nuwa doesn't want to listen; she respects the privacy of the other demons in the palace, and she doesn't believe they can bring her any amusement.
However, Ji Changsheng and Li Huanyan can amuse her, yet even so, Empress Nuwa knows to respect their privacy rights.
But now, Empress Nuwa had just absorbed a lot of knowledge and basically understood Pangu's intentions.
After mastering the new model of the tribulation, Empress Nuwa wanted to continue discussing the future development direction of her palace with her son and daughter-in-law.
Thus, she casually released her divine sense to find Ji Changsheng and Li Huanyan.
And with this release, she encountered a problem.
It was simply an auditory overload.
So Empress Nuwa decided to take a visual look instead.