The Battle of Rimuru City, an absolute Falmuth Victory. The Monster Federation falls, however they forgot to take down the most important pillar to Tempest, the one who the Federation was named after, Rimuru Tempest. With his companions dead and no hope of revival Rimuru's rage eradicates Falmuth's army, awakening as a Demon Lord in the process.

The Federation falls, but an Empire is born, with a leader containing a silenced rage, and an army growing to hold weapons unseen and a might unmatched. The world is heading straight into a furious storm, and Tempest will pave the way.

(Cover art commissioned from laksana_ on Fiverr, though the background and overlay was made by me)