A Yan, a modern agricultural researcher, accidentally traveled to a crisis-ridden prehistoric era. When he woke up, what greeted him was not a familiar laboratory, but a primitive man covered in hair and holding a stone blade, and a giant wild cat corpse covered in blood on the ground. With a language barrier, lack of food and clothing, and surrounded by wild beasts, the game starts on a hellish difficulty level.
But when he saw the primitive tribes fighting for a piece of raw meat with all their strength, and saw that they could only eat their prey raw because there was no fire, a different flame ignited in A Yan's heart - he wanted to use modern knowledge to light up the dawn of civilization in this wild land. Teach them to drill wood to make fire, make fine stone tools, lead them to cultivate land, plant grains, resist ferocious beasts, and compete with other tribes.
From being a wary "alien" to becoming a "civilized guide" that the tribe relies on; from barely surviving by hunting to establishing a stable agricultural tribe. Ayan used a stone ax to split the barbaric wilderness, used rice ears to feed hope, and wrote his own "story of the rise of prehistoric civilization" on this primitive land.