Fantasy Three Kingdoms: Why is My Harem Full of Female Generals!

I unexpectedly traveled to the late Eastern Han Dynasty, but... why is this so different from the history books? Back then, the Han Dynasty was a land of galloping horses and cavalry on the grasslands, haunted by ghostly figures at midnight; serpent monsters lurked in deep pools, and fox spirits roamed the mountains; powerful families monopolized magic, and the Han emperor and princes transformed into dragons. Ten thousand demons, all carrying Han Dynasty green cards, proclaimed how powerful their empire was. Millions of people donned yellow turbans, wielding thunder and lightning, calling themselves the Thunder Warriors of the Yellow Heaven, and establishing thirty-six war generals across the nine provinces to lead the Yellow Turban Rebellion. From the Taihang Mountains to the seven commanderies of Jingzhou, they caused rivers to boil, destroyed cities, and set the empire ablaze. I wonder if half of the war generals will betray the Yellow Heaven someday. Okay, a little strange is a little strange, but... why are all these renowned figures from the late Han and Three Kingdoms periods all women?