Today, a calamity is destined to befall Sword King Mansion.
Prince Liu, even more so, is planning to use this opportunity to directly annihilate Sword King Mansion.
Eliminating Sword King Mansion for no reason would incur the enmity of many military figures. However, if a female assassin or other substantial 'evidence' of crimes were discovered during the search at Sword King Mansion, that would be a different matter.
Even if nothing is found, taking the chance to humiliate the people of Sword King Mansion is also a great pleasure.
This would even win the favor of the Emperor.
Others might not understand the royal decree, but Prince Liu is very aware of it.
The Emperor probably dreams of completely eradicating Sword King Mansion, to avoid future troubles once and for all.