Magical Three Kingdoms: Why are my harem full of female generals?

I accidentally traveled to the end of the Eastern Han Dynasty, but... why is this place different from what is in the history books?
In the Han Dynasty at that time, there were horses and men galloping on the grasslands, and ghosts appeared at midnight; snake monsters invaded the deep pools, and foxes lurked in the mountains; the noble families monopolized magic, and the Han emperor and his princes turned into dragons.
One hundred thousand demons all brought Han green cards and shouted that our empire is so powerful.
Millions of people wore yellow turbans, drove away thunder and lightning, and called themselves the Thunder Warriors of Huangtian. They set up thirty-six war generals in Kyushu to lead the Yellow Turban Uprising.
From the Taihang Mountains to the seven counties of Jingxiang, he made the rivers boil, destroyed the cities, and burned the empire. He just didn't know if half of the war generals would betray Huang Tian in the future.
Okay, it’s a little weird, but... why are all these famous guys in the late Han Dynasty and the Three Kingdoms period girls?