Hwarang Segi is likely a forgery due to the character Mishil

It is known that a person named Park Chang-hwa was an expert in classical Chinese studies, but also wrote several erotic novels in classical Chinese. lol
I suspect that, unable to resist the urge to create erotic fiction, he invented the character Mishil for Hwarang Segi.
Mishil has relationships with King Jinheung, his eldest son Crown Prince Dongryun, his younger son King Jinji, King Jinpyeong (the son of Crown Prince Dongryun), and finally, even with his younger brother.
Her maneuvers are almost on the level of Wu Zetian, yet there is absolutely no mention of her in historical records.
In the midst of this, she was in a romantic relationship with a Hwarang named Sadaham, who died at the age of 17, and furthermore, she had two official husbands named Sejong and Seolwon-rang.
Even if we set aside Samguk Sagi as official history, the fact that her name is not mentioned in Samguk Yusa—despite her having direct relationships with three kings—is enough to make one doubt the existence of the character Mishil.
Anyway, I hope Park Chang-hwa's erotic classical Chinese novels are translated and published as soon as possible.