The Hidden Intelligence of Lone Mountain Castle in the Border Province!

Nossa Empire.

The Border Province Governor's Keep.

It was a castle perched atop a lone mountain.

The entire mountain was protected by towering walls.

During the Old Continent Era.

This had once been the most prosperous city in the Border Province of the Nossa Empire.

Countless merchants and travelers had journeyed back and forth across the border,

facilitating trade between the Nossa Empire and the Orc Beastmen Empire.

Once!

The Lone Mountain Governor's Keep had also endured countless battles.

The Beastmen Legion from the Oak Empire had surrounded it time and again.

During the most dangerous siege,

the Lone Mountain Castle had even been surrounded for a full hundred years.

Yet!

Even so,

this castle in the Border Province of the Nossa Empire had never been conquered.

It was a castle that had never fallen.

From the foot of the mountain to its summit,

the Nossa Empire had deployed vast numbers of Magic Crystal Cannons and the Magic Crystal Gun Legion.

But if that had been all,

Lone Mountain Castle could not have held back the Oak Empire's Beastmen Legion.

The castle's most elite legion

was the Magic Mechanical Legion stationed there.

Although it numbered only ten thousand,

during the Old Continent Era, it had left the Oak Empire's army able to do nothing but stare at the castle in despair.

However, when the Great Calamity Era arrived,

Lone Mountain Castle still fell.

A prince who had retreated from the Nossa Empire Royal Capital held the castle with the Imperial Guards.

Afterward!

They encountered an assault from the deities of the Mist World.

This castle, renowned as one that would never fall,

held out for only three days before it was breached.

Every defender died in battle.

The once-proud Magic Mechanical Legion was utterly helpless before a deity.

However, after