Back to the Primitive Age: Unleashing a Building Frenzy

When humanity wakes up, its civilization, history, technological achievements, and everything else have vanished. The entire human race has returned to the primitive era.

Everyone is given a territory and starts with nothing but a hammer, forced to build a home from scratch while facing ** attacks and competition from other humans.

Chen Ran is an ordinary person among them, but unexpectedly activates a sign-in System that lets him sign in every day.

"Congratulations, Host, sign-in successful. You have obtained a mechanical worker. Construction efficiency increased by 100%!"

"Congratulations, Host, sign-in successful. You have obtained an electrified fence, which can protect your home from intruders."

"Congratulations, Host, sign-in successful. You have obtained a senior engineer..."

While everyone else is still slowly putting up little huts, Chen Ran studies the blueprints in his hand and wonders, "Where should I build the skyscraper next?"

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.