I, the Weakest Traveler, Start by Taming the gods of the Old World. - Chapter 127: The dragon, Lyra.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Kyle broke free.He finally punched that guy in the face!But yeah, in return, he and his cronies would beat Kyle to death. Kind of a bad deal, but screw them anyway!He didn't regret punching this guy even once!However, just when Kyle was getting his face pushed in, a powerful Magic Lady intervened and offered him a job. Bit of a weird time to recruit someone, but sure.What was his job?He had to go to a different world and become its Overseer, whatever that meant. This entire deal seemed a bit shady.A world where one person can fight thousands of people.A world where gigantic beasts shattered mountains.Sadly, Kyle was just some random guy. He couldn't shatter mountains. Hell, he could barely fight a single guy.Well, that just meant he had to grow more powerful.And during Kyle's stay in that world, he would realize that he really liked the feeling of breaking stuff with his big hammer.Join Kyle on his journey to become the Strongest Hammer God.

Let someone else go to war, you, lucky Austria, go get married! What the god of war can give you, the god of love can also give you.

The smoke of the Napoleonic Wars has dissipated, and the Vienna system that once brought peace to Europe is riddled with holes. Beneath the seemingly peaceful appearance, there is a vortex of the times with undercurrents, the tranquility before the storm.

The air is filled with the steaming mist of sweat, and the choking black smoke makes it hard to breathe. On the elegant dining table, a group of soldiers and fat men in suits are pushing each other, feasting on the feast called the world, hanging on the wall Van Gogh’s self-portrait with waltz in his ears.

Suddenly the music turned into a march, and the picture also turned to the battlefield. Soldiers marched in a neat line, walking towards the machine gun barbed wire.

A shell fell on the ground, and after the smoke passed, countless cavalry rushed to the artillery position.

Accompanied by a loud noise, a wooden plane flew close to the ground, then pulled up rapidly, broke through the clouds, and shone brightly.

- Description from novelbuddy

Synopsis below:How did the Avatar universe change when a transmigrant appeared in an unknown village, long before the canonical events? And how are the two islands Kyoshi Island and Uzushiogakure no Sato (A village hidden in the maelstrom)?---Tags: AU, Before-canon, Post-canon, Violence, Death of major characters, Transmigration, Harem, Children, Incest, Romantic. Foul language.