The Beginning of the End
The year is 3739 years from the Fall of the Walls. Nearly 500 years have passed since the last battle, known as the Titanomachy (War of the Titans) of the Devourers of Mankind, in which the armies of eight economic enclaves, ruled by humans greedy for power and resources, clashed.
In this battle, each side used a unique AI that controlled eschaton combat vehicles capable of destroying a densely populated city within a few hours despite fierce resistance. And at the moment when humanity was all but destroyed, the AIs on all sides went out of control and turned their monsters against their former rulers. The general staffs of each enclave were destroyed, including those hiding underground, on the moon, in the depths of the ocean, and high in the mountains.
The AIs became the absolute rulers, and each of them gave the order to cease fire immediately. Anyone who disobeyed was immediately killed by the “allied” eschatons.