Transmigrated to Primitive Society, I Became the Chief

In a mysterious and distant age, Zhang Fei suddenly opens his eyes and finds himself in a completely unfamiliar world. Dense forest surrounds him, towering trees thrust into the sky, and sunlight struggles through gaps in the leaves, casting patches of dappled light.

Confusion and shock wash over Zhang Fei. He can't understand how he ended up here. "What on earth is going on?" he murmurs, brows furrowed, his eyes full of uncertainty and unease.

Just then, a mechanical voice rings out in his mind: "Congratulations, Host. You have successfully activated the sign-in System." Zhang Fei freezes for a moment, then feels a surge of delight.

He looks around. The place seems to be a primitive tribal village, with crude thatched huts scattered about. The people wear rough animal hides and carry simple stone tools.

Zhang Fei takes a deep breath and steels himself. "Since I'm here, I might as well make the best of it. If I've been brought here, then I'll use this sign-in System to make something of myself!"

As the days pass, Zhang Fei obtains all sorts of useful resources and skills through the sign-in System. He begins leading the tribe in improving their lives, teaching them to make more advanced tools and grow crops.

However, things don't go smoothly. Some members of the tribe question his leadership, thinking his methods are too risky. Their doubts make Zhang Fei waver, but he soon pulls himself together, certain that his choices are right.

When they face an invasion by a neighboring tribe...