True Three Kingdoms: Heroes Unleashed

Transmigration + Three Kingdoms + System + one female lead + no characters acting out of character

Cultivate, train the army, pacify the realm, and see how Liu Yan cuts through the enemy ranks on the battlefield, a one-man army!

(The early chapters lay the groundwork, so the pace is a little slow. It picks up after the Yellow Turban Rebellion. The novel mainly follows the Romance of the Three Kingdoms.)