[Farming + transmigration and rebirth + pocket dimension + herbal medicine and pesticides + romance]
Modern pharmaceutical expert Su Wan transmigrates into the body of a peasant girl in Qinghe County. Her mother is gravely ill, her father is dull-witted, and her family is dirt-poor. It's a disastrous start, but at least she has a pocket dimension with a spirit spring to rely on.
She plans to make a fortune with her cooking and live a peaceful life. But one chance encounter pulls her into the empire's bloodiest struggle.
Xiao Yan, Marquis of Dingbei, is a cold-faced war god. Framed by a treacherous chancellor, he is cut off from supplies and left gravely wounded, on the brink of death.
Su Wan marches into the military camp with her medicine chest, using silver needles to restore his meridians and the spirit spring to keep him alive.
"My lord, if you want to live, you'll do things my way."
From then on, the peasant girl rises to great heights.
She works on the front lines, using the spirit spring to control the supply of medicinal herbs and commercial warfare to cut off the enemy's provisions, clawing a path to survival right out of the chancellor's grasp.
He fights at the rear, wielding his spear on blood-soaked battlefields, pacifying the northern barbarians and securing the western frontier, conquering a vast realm.
From a country girl mocked as "uncultured" to a woman revered by the people as a "Sage Physician" and granted a first-rank title of nobility;
from a "living King of Hell" everyone avoided to the Marquis of Dingbei, standing by her side to rule a flourishing age.
He promises her a lifetime of devotion: "In this life, I will protect only you."
She promises him a land at peace: "Xiao Yan, I'll defend this realm with you."