Prologue
There was a legend that the Japan was once a modern region when it was terrorized by a giant monster that could never forgive mankind. That giant monster is Godzilla, king of the monsters, that punished the humans for created that made him what he is. The nuclear bombing test is what created him and disturbed his slumber in the ocean.
Godzilla wasn't the only one that was created. There are other giant monsters that was created from nuclear testing or disturbed in their sleep, such as Anguirus, Rodan, Mothra, Ebirah, Kumonga, Kamacuras, Zilla, Baragon, Gorosaurus, Manda, Varan, King Caesar, Kong, Titanosaurus, Shivamajin (An OC statue monster with eight arms that resembles a Durga) and many more of them.
Through out the history, Godzilla has been proclaimed as a savior of the Japan because he fought against the threat, such as the alien monsters from space, a giant mutant created by science, and most of all, the mecha titans that was created by a military government who sought to put end of the giant lizard, along with other monsters for their sake in mankind.
As the few decades went by, the giant monsters or kaiju were reduced to a myth and legend because many people in Japan believed that Godzilla and the other monsters were only a mere legend and do not exist.
Deep within the ground underneath the country is a cavern, filled with the skeletal remains of the kaiju. Among them was Godzilla, along with other monsters as if they were extinct...for a very long time.
Above the ground, the city and neighboring was plagued by demons and orcs, sought to kill men and having a lust for women. No one knows where they come from and why they were here.
Then one day, a mysterious group of ninjas from their ancient clan rise above to dispel the demon's influence and corruptions from the world. They are called 'Taimanin', a group of mostly female ninjas who trained in arts of stealth and espionage, fused with demon's DNA to aid them in combat, and served the government.
Little did they know, the spread of chaos and conflicts has somehow disturbed the giant monster's resting place underneath their city. As the spirit of Godzilla and other giant monsters is growing and causing an earthquake, they're becoming very restless and upset that they want to be in peace and be left alone until one day, they found a way back to the surface to go punished whoever causes the commotions when someone fell in their resting place.
But who…
Inspired by a story made by blaeinferno4, I decide to to make this my first crossover story