I Farm My Way to an Alternate-History Royal Uncle

Reborn in the womb into a poor family in ancient times, I come with a Divine Farmer's Space and a knowledge database. I only wanted to farm and support my family, but I accidentally rescued the emperor's uncle, the regent. The regent is powerful and ruthless, yet he's unusually invested in farming. Then one day, holding the high-yield crop seeds I presented to him, he bends down with a faint smile. “If we use these crops to control the lifeblood of the realm, how about you and I join forces?” Only then do I realize that this farming business may lead all the way to the dragon throne.