I’m the Most Cunning Strategist, and I’ll Help the Empress Win Without Lifting a Finger

[Alternate History + Transmigration + Empress]

When Chen Xian wakes up, he finds that he has transmigrated to the Great Qian Dynasty and become the son of Prince Kangping, whose rebellion failed!

The Xiongnu are invading from the north. If Chen Xian can't come up with a plan, he'll be executed.

Empress: Chen Xian, do you have a plan to make up for your past mistakes?

Chen Xian: Your Majesty, have you heard of economic warfare?

He had planned to quietly toil away on the assembly line, but instead, he became the most feared strategist in the land, revered by everyone!