You have to admit, no matter where you are in the world, having support and strength is the ultimate truth.
Even in the Imperial Palace, this rule stands.
Even if he was mad enough to bite through his teeth, the Emperor had to stop the Crown Prince from interrogating Princess Ling'an.
However, it is still okay to interrogate a palace maid.
But the problem was, this maid came from the Empress's palace, and digging her out stirred up trouble, implicating the Empress as well.
Things had escalated.
This is something the Emperor does not want to see.
He's getting old, he doesn't have the energy he used to have. He just wants the harem to be peaceful and to avoid making trouble for him, especially things that might cause him a headache.
If it involved the Empress, should he punish her or not?
If he didn't, it just wouldn't make sense.
But if he did, it could implicate the previous dynasty.
Just thinking about this situation irritates the Emperor.