For hundreds of years, humanity has waged war with the monstrous Demon King.
Countless battles have been fought with the demonic hell-spawn that crossed over into their world. Despite the fierce battles that have been wage neither side managed to tip the scale of the war in their favor...that is until now.
By the grace of their god, countless heroes soon arose amongst the populace. Their strength, wit, and magic tipped the endless war with the demons in humanity's favor. Their victories began to mount, pushing their foes back to the demonic gate from which they spewed forth from. With the end of the war in sight, the heroes of every nation then banded together form the world's mightiest army.
Christened as the First Expedition, these fearless warriors crossed the gate into the Demon Realm.
Every nation waited with baited breaths for the day that their heroes returned with the head of the Demon King.
Except, such a victory never came.
Days soon turned into months and months quickly turned into years, and a decade had passed by but there was no sign of their beloved heroes. The leaders of each nation grew worried that something terrible must have occurred on the other side of the gate. Unable to wait any longer, a second expedition was quickly gathered.
Formed by the best huntsman and trackers on the continent, these brave humans dove headfirst into the unknown, in search of their missing heroes. So, the nations awaited again with abated breaths. Everyone wanted to know of the heroes fate. They did not have wait long as the gate opened after a week.
Only one person returned.
He was injured and shellshocked, mumbling incoherently.
Their best physicians quickly tended to the man, but he only gibbered over and over about one thing.
Giant Maids.
Of course, the leaders each nation assumed it was only the raving of a madman and shut the poor soul away so that their people wouldn't hear of his ramblings.
A third expedition was then formed, but made of the brightest sages and most intellectual minds. They journeyed through the gate, their magic ready to repel whatever had decimated the first two expeditions. But, to their people's shock, nary a day had passed before half of the sages came screaming through the gate. It took a day to gather the scared mages, but what they brought back had shaken the human world to the core.
A recording had been made from the moment they crossed into the Demon World.
And what they saw was terrifying.
The madman's rambling had been true!
The third expedition easily made to the Demon King's castle, their foes nothing more than cannon fodder before the sage's magic. It was only when they stepped inside the castle did everything go wrong. The leaders of the human world could only watch in sheer horror as maids larger than even their tallest mountains appeared and easily decimate their sages. Their great magics nothing than drops of rain upon an ocean as a single step easily destroyed entire battalions worth of mages.
Only the back-up units were able to retreat in time and cross the portal.
Thus, humanity suffered its most humiliating loss by their new foes.
Plans were made to defeat these giants but each one ended with failure, with the subsequent expeditions either being wiped out or left catatonic upon their return.
But, their defeat only spurned them on to try and conquer these titanic maids. Their weapons improved, their tactics changed, and humanity grew as the 7th expedition to the Demon World was gathered.
And a bold, new plan was introduced.