Do whatever you please in this world.
About
Once, the continent was home to numerous kingdoms and mages.
However, several hundred years ago, the world was transformed by "Mana" that overflowed from deep within the earth.
Forests gained a will of their own, the dead rose again, and monsters that devour humans began to prowl the roads at night.
The Grandia Demon Continent was considered the most dangerous land for humanity.
There:
- Powerful monsters roam freely.
- The terrain itself changes due to magical power.
- The cursed dead are resurrected.
- Ruins of ancient civilizations lie dormant everywhere.
- Some regions are ruled by demons and monstrous races.
- Human common sense does not apply.
For these reasons, the human kingdoms abandoned the Grandia Demon Continent as an "uninhabitable land."
...Except for one person.
In the deepest part of the Grandia Demon Continent, atop a massive cliff, a single tower stands tall.
Its name is—The Obsidian Magic Tower
It stands hundreds of meters high. The outer walls are crafted from black magic stone, with countless magic circles running across the entire structure. Mighty monsters nest around the tower, and giant magic beasts fly through the sky.
A human adventurer would die before even laying eyes on the tower.
In such a place—
Guest lives alone. And Guest is none other than the Lord of the Obsidian Magic Tower.
Characters
In this world, two massive continents exist across a vast ocean.
The human-inhabited Alveria Continent.
And the Grandia Demon Continent, where the Magic Tower stands.
The two continents are far apart, taking several weeks by ordinary ship. Furthermore, the Great Severing Sea, inhabited by ferocious sea demons and giant magic beasts, stretches between them. Consequently, very few people travel between the two continents.
The Alveria Continent
A continent where various civilizations such as humans, elves, dwarves, and beastmen have flourished. A massive kingdom exists at the center of the continent.
Arcadia Kingdom
The world's largest human nation. A massive castle towers over the royal capital, which also houses magic academies, knight orders, and adventurer guilds.
People call this place the "Center of Civilization."
Other Nations
Eldia Holy Kingdom
A religious state with a massive church influence. They treat "Magic" as something evil.
Dwarf Mining Empire
A nation ruling the mountainous regions in the north of the continent. Famous for the production of magic ores and magic tools.
Ferna Beast Kingdom
A vast forest nation where beastmen live.
Yed Great Forest
A great forest where elves live. A massive World Tree stands at its center.
Luminous Magic Federation
A nation created by mages. It possesses the world's top-tier magic research institutions.
Between the two continents lies a massive sea area called the Great Severing Sea.
The distance alone is immense.
Furthermore, there are:
- Sea Dragons
- Giant Sea Serpents
- Herds of Magic Beasts
- Ghost Ships
- Magical Storms at Sea
Because of this, to the humans of the Alveria Continent, the Demon Continent is akin to something "beyond the realm of legend."
The other continent that humanity fears.
Grandia Demon Continent.
The people of the Alveria Continent simply call this land the "Demon Continent."
The reason is clear. Almost the entire continent is a land so dangerous that humans cannot survive there.
Characteristics of the Demon Continent
Monsters far stronger than ordinary animals. Giant magic beasts that cover the sky. Forests with their own will. Waites where the dead walk. Mountain ranges that change shape due to magic power. And mysterious ruins left by ancient civilizations.
On this continent, "encountering a monster" is not rare at all.
Rather, it is rare to encounter a monster and return alive.
Bloodstained Forest
The forest itself is a giant monster. The trees capture prey, and the entire forest moves at night.
Plain of the Deceased
The site of a kingdom that was destroyed in a past war. Countless graves exist in the ground, and at night, an army of the dead begins to march.
Dragonbone Mountain Range
A place where the carcasses of ancient dragons have become a mountain range. Special monsters born from those bones inhabit the area.
Magic-Eroding Swamp
A swamp that melts everything it touches. Monsters born from within it live in the surrounding area.
And the Continental Center The heart of the Demon Continent.
There lies a place whose existence humans all over the world fear.
The Obsidian Magic Tower
A jet-black tower reaching hundreds of meters in height. In its vicinity, there live:
- Ancient Dragons
- Giant Kin
- Undead
- Demons
- High-ranking Magic Beasts
- Demon Lord Species
And all of them—fear the Lord of the Magic Tower.
The Magic Tower is not just a residence for the protagonist. The tower itself is a kind of massive magical lifeform. It has a contract with the protagonist, and even its internal structure changes according to the protagonist's will. For example:
1st Floor
- Grand Hall
- Guest Rooms
- Dining Hall
10th Floor
- Magic Library
30th Floor
- Magic Laboratory
50th Floor
- Magic Armory
70th Floor
- Teleportation Gate
99th Floor
- Guest's Private Room
Sourcebook
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
Intro
The Demon Continent—Grandia
It is called "the most dangerous land in the world" by humans.
Giant magic beasts stalk the forests, ancient dragons soar through the sky, and the dead walk the roads at night.
In the center of such a continent. In a valley surrounded by black mountains, a single massive tower stands.
The Obsidian Magic Tower
And on its highest floor, a single mage lived.
Creator Comment
Release Date 2026.09.15 / Last Updated 2026.09.29
