Tribal farming + primitive people + the rise of civilization + infrastructure and farming + lighthearted power fantasy + devoted husband and one heroine. The struggle for supremacy comes later; at first, the focus is on building up the tribe.
A modern young man transmigrates ten thousand years into the past and becomes a boy from an ancient O-haplogroup tribe, an ancestor of the Chinese people.
His home is destroyed by a northern tribe dressed in sheepskins. After fleeing for days, he reaches the edge of a vast marsh. There is no salt, food, or shelter, wild beasts roam everywhere, mosquitoes swarm, and his people are on the brink of death.
Mang unexpectedly awakens the Everything Times Ten Thousand Acceleration System. It can be used once a day to defy fate!
Fish fry instantly grow into hundred-jin fish. A thought turns clay into pottery. In moments, deadwood becomes a stilt house. A single tap purifies rock salt from the mountains. He face-slaps the stubborn old-fashioned villains, tames wild boars to raise livestock, digs trenches, builds hedges, and secures the food supply.
From a band of desperate survivors to the ruler of Dongting, he uses modern knowledge to crush primitive ignorance and races ahead of civilization with his accelerated System. He protects his people, seizes salt mines, and fights the northern sheepskin-wearing tribes. Farming, hunting, making salt and building homes, doting on his wife and standing up for her, he leads his tribe into a golden age where they can eat salt and meat, live in peace, and prosper!