The Waves Leap

The great river goes eastward, and the waves leap into eternity Weapons student Chen Liu returned to 1639 in the explosion, when the Ming Dynasty was gradually coming to an end. There is a corrupt party inside, and refugees are everywhere. There are Jurchen invaders outside and they are unable to resist How can he use his professional knowledge to turn the tide? In the vast sea, who is in charge of the ups and downs? The land is vast. Whose Spring and Autumn Period?