In the past, Qingping was indifferent to other matters, especially those involving the royal family.
But today's matter is related to Princess Zhenmin, and Qingping cannot turn a blind eye. So, whether there's a conspiracy against Zhenmin, or an indirect use of the deceased Zhenmin against Su Rong, no matter who it is, royal family or not, she must step in.
She believes that her royal brother would never willingly remain ignorant of matters involving Sister Zhenmin. This belief stems from her understanding of him as his sister.
Sure enough, when the emperor heard Qingping's words, he ordered the eunuch Yu in a deep voice, "Summon He Zheng."
He Zheng is the commander of the Imperial Guard.
Eunuch Yu complied.
In a short while, He Zheng appeared before the emperor and kowtowed.