I'm in the Wild Tribe

Programmer Jiang Tian worked overtime until late at night, and suddenly felt very sleepy. After a long sleep, he woke up and found that he had traveled through time and entered a primitive tribe. There are extremely tall trees here, ferocious and bloodthirsty terrifying beasts, as well as various wild beasts and strange plants with strange abilities. And his tribe has just encountered a crisis. Let's see how Jiang Tian leads the tribe through the crisis and rises in the vast wilderness.