Transmigration + farming + industrial revolution + the struggle for supremacy.
Lu Chen, a top engineering student, is driving his motorhome to Tibet when one press of the accelerator sends him straight into the past.
When he wakes up, the motorhome is stuck in a ravine, surrounded by refugees fleeing famine. Hundreds of people are so hungry they're chewing tree bark, while soldiers hunt them down from behind. Lu Chen opens the storage cabinet: bottled water, compressed biscuits, military rations, all in unlimited supply. Even more astonishing, the supplies replenish themselves every day at midnight.
He leads the refugees to a mountain valley enclosed on all sides and builds Peach Blossom Village. They grow potatoes, smelt iron, make firearms, and string up barbed wire. When bandits show up, grenades teach them a lesson. When soldiers arrive, breech-loading guns do the same. From a few hundred refugees to an army tens of thousands strong, from not owning a single blade to ranks of steel rifles and cannons.
After unifying the realm, Lu Chen refuses the title of emperor and becomes only the “Grand Steward.” He drives an industrial revolution: steam engines, railways, telegraphs, electric lights, automobiles... Technological progress leaps centuries ahead. Huaguo becomes the world's mightiest nation, with all countries paying tribute.
Yet at the height of his glory, the motorhome mysteriously disappears with him. Civil war breaks out, and the Western coalition seizes the opportunity to invade. A flash of white light, and the king returns, bringing even more advanced technology!