Ankoku Kishi Monogatari ~Yuusha wo Taosu Tameni Maou ni Shoukansaremashita~ - Chapter 79.1: The Beginning of the Storm

This is the tale of an earthling, who transmigrated as a dying third-rate god but somehow rose through the ranks, gaining followers and eventually causing the Fourth Great Apocalypse.

A giant golden tortoise, as huge as the world, crosses a broken world.

Seeing the vast world in ruins, Xu Feng slammed the giant golden tortoise on the head.

“Be careful next time, don’t use such brutal methods.”

The story begins with a young turtle-raiser who wants to live a stable life in a small family.

- Description from novelbuddy

Qin Yun, fallen crown prince of Qin Empire. Inherits the martial legacy of nine sun world. The superb martial legacy in his arsenal, insane inscription techniques in his fingertips, surrounded by enemies and beauties abound. But Qin Yun is not satisfied, he wants to go beyond the nine suns into the great astral infinity, to become a GOD.

- Description from Novelupdates

After the Catastrophe, every rule in the world was rewritten.