The Undead King of the Palace of Darkness (WN) - Chapter 103.1: , Battle of the Old Castle

Apocalypse befell, and roommates performed a skyward ritual.As the fog descended, the Book of Blood Spirit appeared in the hands of all survivors, and only those with a Contract monster could survive.Su Han directed his gaze to the neighbor who had already mutated and twisted, silently pulling out a gleaming fruit knife...Grotesque meat corpses, giant spiders with gaping mouths, eyeballs enveloping the city, one-eyed sharp-toothed hand monsters...Civilization fell, cities shattered, and all humans became meat for the monsters. There was only one way to survive:Use monsters to fight monsters.

“VILLIAN!? Is that what you call me? Do you know what I have been through?

FATE dealt me this hand, and I'll find peace in it. Even if I have to end the world, I'll sit a king on its ruins.

I'm not a good guy. I won't even pretend that I am. But then again, who in this world can truly claim that title?

At least I know my heart. What about yours?”

.....

Chiron lived an unfortunate life, but his problems only got started when he was reincarnated in his dangerous Hit novel.

Behold, a lesson to all authors... MC's have it difficult too.

Qin Shou arrives in the world of monster movies and activates an anomalous creature synthesis system, embarking on a true journey of fighting monsters and leveling up.[Marine Iguana] + [Huge Size] + [Atomic Reactor] + [Humanoid Adjustment] = [Godzilla]Ding! Godzilla similarity ten percent, reward: Intelligence Development.[Chimpanzee] + [Huge Size] + [Intelligence Development] = [King Kong]Ding! King Kong similarity fifty percent, reward: King Kong Transformation Card x1.[Bull Head] + [Deer Antlers] + [Crocodile Mouth] + [Snake Body]…+ [Anti-gravity Device] = [Divine Dragon]Ding! Divine Dragon similarity ten percent, reward: Mechanical Heart.[Mechanical Heart] + [Mecha] + [Devouring Spineworm] + [Flip Phone] = [Masked Rider Faiz]Ding! Masked Rider similarity ten percent, reward: Light Energy Converter…………[Light Energy Converter] + [???] = [Ultraman Tiga]……Three hundred years ago, the king of monsters Godzilla and King Kong fought a century battle……Two hundred years ago, alien pioneers opened a dimensional gate……One hundred years ago, the Jurassic theme park became a land without an owner……New Century 120……

What happens when a man gets transported into a foreign world filled with magic?