Xerox Zee : An Extra into a Novel - Chapter 28: Power Play!

The hellhound is a legendary beast known for its fierce loyalty and formidable power, serving as a guardian of the underworld. During a cataclysmic cosmic conflict between gods and devils, the hellhound is tragically killed as collateral damage, his life extinguished in a battle far beyond his control.Millennia later, the hellhound is reincarnated as a human, awakening in a world that has forgotten his true nature. Retaining his past abilities, he must now attend a prestigious academy for those possessing supernatural powers, designed to train the next generation of guardians and warriors.As he navigates the complexities of human emotions and relationships, he must also confront the remnants of his past life. Whispers of the cosmic conflict still linger, and dark forces are at play, threatening to disrupt the fragile balance between realms. In a world where alliances are fragile and danger lurks around every corner, he must learn to embrace his identity as both a hellhound and a human.

She fought in the Battle of Changping and witnessed the killing of hundreds of thousands. She once led the Qin Iron Calvary and battled against the Six Kingdoms. She has seen a third of the land and witnessed the breaking of mountains and rivers. The sound of a grand zither and the light of a great female emperor. A prosperous world that was forged on the battlefield. Yet, these two thousand years are forgotten from history.

- Description from Novelupdates

The story starts on earth, after some unknown circumstances, the world was suddenly invaded by monsters from other worlds. Many died and even more turned into zombies, starting what many would call 'The apocalypse Era'.

Rin, a normal teenage boy who lost all of his family members was on the verge of falling into despair when a goddess appeared and sent him to another world that was very similar to a game Rin played before the apocalypse.

Her goal from this was simple, trample on all the protagonists and become the strongest creature in that world for a chance to get back what he thought he lost forever.

Accompanied by a cold beauty, both of them embark on a new journey to become stronger, get back to their world and fix everything.

This is a fan work of “Magic Forbidden Book Catalogue”, and some settings of “Puppet Circus” are added at the same time.

A traveler from a circus enters Academy City to study and live as a puppeteer; at the same time, he secretly fights against the enemies who keep coming to seize the original magic book in his hands, and protects the safety and peace of Academy City by the way.

…The Third World War? Does the mainland dare to call it “World War” without playing?

- Description from novelbuddy