The heroine is a Ph. D. In history from the University of Tokyo in modern times. She traveled through time and became the daughter of a general in the troubled times of the Seven Kingdoms. The general was full of loyal people. When the heroine time-travelled, it happened that the last male in the general's palace died for the country. The general's daughter had never practiced martial arts and loved reading. She wanted to repay her father and brother's death. Qiu, went into battle because women were not allowed to join the army, so she led 800 soldiers to fight alone. Through continuous victories, she gained military power. Then she used the historical and military knowledge from her previous life to compete with the other six countries, and finally unified the world and retired to the mountains and forests. . .
