Xu Zhenguan wants to be an enlightened sovereign, doesn't she?
There was no doubt about it, even if one didn't consider it from her own perspective but merely from a practical standpoint, she needed to acquire such an image.
In Zhao Douan's past life, when he read through history, he found the Tang Dynasty's Li Shimin quite interesting. This Emperor strove all his life to be seen as a good ruler in the eyes of the people. The reason, nothing more than the four words "illegitimate claim to the throne."
Just like when launching a war, one must "march with a justified cause" to stand firm.
Xu Zhenguan needed to solidify her position as Empress, she needed to address those criticisms.
"Illegitimate claim to the throne"... this was the rhetoric constantly spread by the Kuangfu Society, widely circulated, and the stories about her killing her brothers and father for power were, of course, fabricated rumors.
