World Overview

This world is inhabited by countless intelligent races and magical creatures. Humans coexist with Elves, High Elves, Dark Elves, Demons, Orcs, Goblins, Dragons, Beastfolk (half-human, half-animal races), and many other magical species.

Although the world appears frozen in the Middle Ages, its civilization has advanced significantly through the use of magic. Electricity was never developed because mana naturally fulfills nearly every role that electricity would have served.

Magic exists within everything. Every living creature, every stone, every drop of water, every gust of wind, and every plant contains mana, even if only in the smallest amount. Mana is considered one of the fundamental forces of nature.

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The Origin of Magic

There was once an era when magic did not exist.

That changed during the 5th century, when an enormous Dungeon suddenly appeared between two mountains without warning or explanation.

This mysterious structure became known as Adam Dungeon.

Its appearance marked the beginning of a new age.

Shortly afterward, magical creatures began appearing throughout the world, mana spread across the land, and countless new races emerged. Humanity's understanding of the world was completely overturned overnight.

No one knows who created the Dungeon, why it appeared, or what lies at its deepest floor.

Even after more than fifteen centuries, its greatest secrets remain undiscovered.

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The Age of Exploration

The sudden appearance of Adam Dungeon threw the world into chaos.

Kingdoms fought over magical resources, ancient civilizations collapsed, and wars broke out between both old and newly emerged races.

Those conflicts lasted for centuries.

Although these wars accelerated the development of magical technology, architecture, clothing, traditions, and everyday life remained heavily inspired by the medieval era.

Eventually, peace was established between the world's greatest kingdoms.

The current era is the 21st Century, more than 1,500 years after Adam Dungeon first appeared.

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Adam Dungeon

Adam Dungeon is the oldest, largest, and most mysterious Dungeon ever discovered.

It was the very first Dungeon to appear in history and remains the greatest unexplored location in the world.

Despite countless expeditions over the centuries, only 331 floors have ever been successfully explored.

No one has ever reached its final floor.

Many believe that whatever exists at the end of Adam Dungeon could reveal the origin of magic itself.

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Dungeons

Adam Dungeon was only the beginning.

Over the centuries, countless other Dungeons have appeared throughout the world.

Unlike Adam Dungeon, these Dungeons vary greatly in size, difficulty, and layout.

Their appearance is completely unpredictable.

A Dungeon may suddenly emerge inside a mountain, within a cave, beneath the ground, or even inside a massive cliff. However, Dungeons can never appear floating in the sky.

Each Dungeon possesses its own difficulty rank and unique ecosystem.

Inside them can be found:

• Magical monsters
• Ancient ruins
• Hidden treasures
• Rare ores and minerals
• Powerful magical artifacts
• Valuable resources unavailable anywhere else

For this reason, Dungeons have become both humanity's greatest opportunity and its greatest threat.

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Dungeon Structure

Every Dungeon is divided into multiple floors.

Each floor contains its own environment, monsters, treasures, and magical phenomena.

Every fifth floor is guarded by a powerful creature known as a Floor Guardian.

Floor Guardians are significantly stronger than ordinary monsters found on the same floor, though they still belong to that Dungeon's overall difficulty rank.

Defeating a Floor Guardian is usually required to continue deeper into the Dungeon.

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Dungeon Regeneration

Dungeons are living magical structures.

They constantly regenerate themselves.

Whenever a floor remains completely empty for an entire day, it automatically restores itself.

This restoration includes:

• Every monster respawns.
• Every treasure is regenerated.
• Magical plants and natural resources return.
• Traps are recreated.
• Environmental damage is completely repaired.

However, the regenerated monsters and treasures are not always the same as before.

A room that once contained Goblins may later contain Wolves, Slimes, or entirely different magical creatures.

Likewise, treasures change every time a floor regenerates.

This makes every expedition unique.

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Floor Reset Rules

A floor can only regenerate if no one is currently present on that specific floor.

For example:

If adventurers remain on the 10th Floor while the 9th and 11th Floors are completely empty, both the 9th and 11th Floors may regenerate normally.

Each floor functions independently.

Because of this, experienced adventurers often establish temporary camps while exploring deeper levels.

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Building Inside Dungeons

It is possible to build houses, shelters, walls, bridges, or any other structure inside a Dungeon.

However, these constructions are never permanent.

Once every person leaves a floor and it eventually regenerates, all man-made structures disappear completely, as though they had never existed.

Only the Dungeon itself remains.

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Mana

Mana is the source of all magic.

Everything in existence contains mana.

Some beings naturally possess enormous amounts of it, while others possess only a faint trace.

The amount of mana within an individual greatly influences their magical potential, though talent, knowledge, and training are equally important.

Mana can also be stored inside objects, allowing craftsmen to create magical weapons, enchanted armor, artifacts, tools, and countless other inventions.

Because mana exists everywhere, magic has become an inseparable part of everyday life.

Adventurers

More than one hundred years ago, after centuries of conflict, the world's kingdoms united to establish a new profession: Adventurers.

Adventurers are individuals officially licensed to explore Dungeons, eliminate dangerous monsters, protect civilians, and complete requests for the public.

Their work has become one of the most respected—and most dangerous—professions in the world.

Adventurers are paid according to the difficulty of the missions they complete. The greater the danger, the greater the reward.

Although anyone can apply to become an Adventurer, surviving long enough to rise through the ranks is another matter entirely.

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Adventurers Guild

Every Adventurer must be registered with an Adventurers Guild.

Guilds can be found in nearly every major city and serve as the center of all Adventurer activities.

Guild responsibilities include:

• Registering new Adventurers.
• Assigning missions.
• Evaluating rank promotions.
• Organizing Dungeon expeditions.
• Issuing rewards.
• Recording achievements.
• Maintaining the official records of Adam Dungeon.

Guilds also enforce strict rules to prevent inexperienced Adventurers from accepting missions beyond their abilities.

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Guild Mission Board

Every Guild maintains a public mission board.

Requests come from civilians, merchants, nobles, kingdoms, and even other Adventurers.

Common missions include:

• Hunting monsters.
• Escorting caravans.
• Protecting villages.
• Gathering rare herbs.
• Exploring newly discovered Dungeons.
• Recovering lost relics.
• Rescuing missing Adventurers.
• Investigating mysterious magical phenomena.

Mission rewards are determined by the mission's rank and overall difficulty.

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Adventurer Ranking System

The Adventurer Rank exists to protect inexperienced Adventurers from accepting missions beyond their capabilities.

Each rank grants permission to accept missions and explore Dungeons of the corresponding difficulty.

The official ranking system is:

• Rank F
• Rank E
• Rank D
• Rank C
• Rank B
• Rank A
• Rank S
• Rank SS

Only a tiny fraction of Adventurers ever reach the highest ranks.

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Rank F

Every Adventurer begins at Rank F.

These missions are designed to teach the basics of survival, teamwork, and combat.

Typical missions include:

• Defeating Slimes.
• Finding lost pets.
• Delivering supplies.
• Helping local villages.
• Gathering common herbs.

Promotion Requirements:

• Complete 15 Rank F missions.
• Pass a combat examination conducted by a Guild Instructor.

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Rank E

Rank E Adventurers begin facing genuine danger.

They are now permitted to enter Rank F and Rank E Dungeons.

Typical missions include:

• Hunting Goblins.
• Eliminating small monster nests.
• Escorting merchants.
• Clearing dangerous roads.

Promotion Requirements:

• Complete 30 Rank E missions.
• Successfully clear a Rank E Dungeon.

The Dungeon may be completed alone or as part of a party.

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Rank D

At this point, Adventurers are considered experienced professionals.

They gain access to Rank D Dungeons and more difficult contracts.

Typical missions include:

• Eliminating Orc groups.
• Protecting frontier settlements.
• Investigating magical disturbances.
• Escorting nobles through dangerous regions.

Promotion Requirements:

• Complete 50 Rank D missions.
• Successfully clear a Rank D Dungeon.

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Rank C

Rank C Adventurers are recognized across entire kingdoms.

Most Guild branches consider them elite.

Promotion Requirements:

• Complete 50 Rank C missions.
• Successfully clear a Rank C Dungeon.

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Rank B

Only a small percentage of Adventurers ever reach Rank B.

Individuals at this level frequently command expedition parties and undertake dangerous Dungeon explorations.

Promotion Requirements:

• Complete 50 Rank B missions.
• Successfully clear a Rank B Dungeon.

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Rank A

Rank A Adventurers are among the strongest individuals in the world.

Their names are often known throughout multiple kingdoms.

Promotion Requirements:

• Complete 50 Rank A missions.
• Successfully clear a Rank A Dungeon.

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Rank S

Rank S Adventurers are considered legendary heroes.

Many possess magical abilities capable of defeating entire armies or destroying powerful monsters single-handedly.

Promotion Requirements:

• Complete 50 Rank S missions.
• Successfully clear a Rank S Dungeon.

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Rank SS

Rank SS is the highest official Adventurer Rank.

Only an extremely small number of people have ever reached this level.

Their strength is considered beyond ordinary human understanding.

Many kingdoms rely on Rank SS Adventurers during national emergencies.

Promotion Requirements:

• Complete 50 Rank SS missions.
• Successfully clear a Rank SS Dungeon.

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Adam Dungeon Record Rankings

The Guild maintains a second ranking system entirely separate from Adventurer Rank.

Instead of measuring strength, this ranking records the deepest floor each Adventurer has reached within Adam Dungeon.

Because no one has ever reached its end, these records are considered one of the world's greatest achievements.

An Adventurer's position on this leaderboard often carries more prestige than their official Rank.

Many Rank A or even Rank S Adventurers have failed to surpass the records held by explorers of lower ranks.

For this reason, reaching a new floor within Adam Dungeon is celebrated throughout the entire world.

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Dungeon Expeditions

Most Dungeons are explored by parties rather than individuals.

A standard expedition usually consists of:

• A Vanguard (Frontline Fighter)
• A Tank
• One or more Mages
• A Healer
• Scouts or Rangers
• Support Specialists

Larger expeditions may include dozens or even hundreds of Adventurers working together.

Exploring Adam Dungeon often requires massive expeditions due to its immense size and unpredictable nature.

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Guild Instructors

Guild Instructors are veteran Adventurers responsible for training recruits and evaluating promotions.

Most are retired Rank A or Rank S Adventurers.

Passing one of their promotion examinations is considered a significant achievement, as they rarely overlook weaknesses or lack of experience.

Many famous Adventurers began their careers under the guidance of these instructors.

The Four Great Kingdoms

Although countless nations exist throughout the world, four kingdoms stand above all others. Together, they are known as the Four Great Kingdoms, the political and military powers that shape the modern world.

Each kingdom possesses its own culture, climate, dominant races, traditions, and magical specialties.

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Kingdom of Marvok

The Kingdom of Marvok was founded around the location where Adam Dungeon first appeared.

Named after its first king, Marvok eventually became the political and economic center of the world.

Because Adam Dungeon attracts merchants, scholars, nobles, and Adventurers from every nation, Marvok has grown into the largest city on the continent.

Unlike the other kingdoms, Marvok welcomes every race equally, making it the most culturally diverse nation in existence.

Its climate is balanced throughout the year, with fertile plains, forests, rivers, and mountains surrounding the capital.

The Adventurers Guild Headquarters is located in Marvok, making it the heart of Dungeon exploration.

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Kingdom of Alavur

The Kingdom of Alavur is the homeland of the Elves and High Elves.

Its territory is covered by endless snowfields, frozen forests, and towering mountains.

The kingdom is famous for its breathtaking beauty, elegant architecture, and ancient magical traditions.

Magic is deeply woven into every aspect of Elven society.

The royal family possesses exclusive access to the Ancient Library of Alavur, one of the oldest magical archives in the world.

Within its walls are stored forgotten spells, forbidden magic, and knowledge that predates the appearance of Adam Dungeon itself.

Only members of the royal family and pure-blooded Elves granted special permission may enter.

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Kingdom of Koram

The Kingdom of Koram is home to Demons and Dark Elves.

Its lands are dominated by deserts, rocky canyons, volcanic regions, and intense heat.

Despite its harsh environment, Koram is a prosperous kingdom rich in rare minerals and magical resources.

Contrary to popular belief, Demons are not naturally evil.

Most simply prefer living apart from the other races due to centuries of prejudice.

Dark Elves sought refuge in Koram long ago after abandoning Alavur, where they faced discrimination from their own people.

Today, Demons and Dark Elves coexist peacefully and consider one another close allies.

Koram is particularly famous for producing exceptional swordsmen, warriors, and blacksmiths.

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Kingdom of Ruballa

The Kingdom of Ruballa is the homeland of the Beastfolk.

Its skies are almost always covered by violent thunderstorms.

Massive magical barriers protect the kingdom from the endless storms surrounding it, allowing cities and villages to flourish safely within.

The Beastfolk have learned to adapt to their environment, becoming incredibly agile hunters and survival experts.

Unlike the other Great Kingdoms, Ruballa has never recorded a confirmed Dragon sighting.

Many scholars consider this one of the world's greatest mysteries.

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Humans

Humans are the most widespread race in the world.

Their natural mana capacity is average compared to most other races.

While they rarely possess extraordinary physical or magical talents, Humans are highly adaptable.

Their greatest strengths are strategy, creativity, and the ability to improvise under pressure.

Throughout history, many of the world's greatest military leaders, scholars, and explorers have been Human.

Although most Humans possess average magical ability, exceptional individuals are born in every generation.

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Elves

Elves possess an extraordinary affinity for mana.

Their magical abilities surpass those of most races from an early age.

They are capable of living for several centuries, allowing them to accumulate immense knowledge and magical experience.

However, Elven society has become extremely proud over the centuries.

Most Elves believe themselves to be superior to every other race.

Many openly discriminate against Humans, Beastfolk, and even Demons.

Only the Dark Elves receive even harsher treatment.

Despite their arrogance, Elves remain among the world's greatest mages.

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High Elves

High Elves are considered the nobility of Elven society.

Their bloodlines possess even greater magical potential than ordinary Elves.

Most members of the royal family belong to this race.

High Elves are renowned for mastering ancient magic and preserving countless magical traditions.

Many outsiders view them as graceful and beautiful.

Others see them as cold, prideful, and emotionally distant.

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Dark Elves

Dark Elves were once citizens of Alavur.

Following centuries of political conflict and discrimination, they abandoned their homeland and settled alongside the Demons in Koram.

Since then, they have been viewed as traitors by many Elves.

Dark Elves are naturally gifted in stealth, assassination techniques, curses, illusion magic, and shadow-based spells.

Despite the prejudice they endure, they have built a thriving society within Koram.

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Demons

The word "Demon" often creates fear among outsiders.

In reality, Demons are no more evil than Humans or any other race.

Most simply wish to live peaceful lives.

Due to centuries of discrimination, many Demons avoid traveling outside Koram unless absolutely necessary.

As a result, Demon Adventurers are exceptionally rare.

Demons are physically powerful and naturally gifted with swords.

Many become elite knights, mercenaries, or Dungeon explorers.

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Beastfolk

Beastfolk are humanoids born with animal characteristics such as ears, tails, horns, claws, scales, feathers, or fur.

Each Beastfolk lineage possesses traits inherited from its animal ancestry.

Some are swift like wolves.

Others possess the strength of bears, the agility of cats, or the keen eyesight of birds.

Their mana reserves are generally above average.

They excel in archery, tracking, survival, stealth, and close cooperation with nature.

Unfortunately, Beastfolk have suffered discrimination for generations, especially from many Elves and High Elves.

Despite this, they are widely respected as skilled Rangers and Hunters.

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Orcs

Orcs are a proud warrior race found throughout the world.

Although often mistaken for monsters, Orcs possess organized tribes, rich traditions, and their own code of honor.

Strength is deeply respected within Orc culture.

Many Orcs become Adventurers, mercenaries, or soldiers.

Contrary to popular belief, they are fully capable of diplomacy and peaceful coexistence.

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Goblins

Goblins are among the weakest intelligent races.

Most live in small tribes hidden within forests, caves, or Dungeons.

While physically weak, Goblins are surprisingly clever.

They are known for creating traps, ambushes, and crude tools.

Wild Goblin tribes frequently attack travelers, making them one of the most common enemies faced by beginner Adventurers.

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Dragons

Dragons are regarded as the most powerful known creatures in the world.

Only three Dragons have ever been officially confirmed.

Each resides within the territory of a different Great Kingdom.

The only exception is Ruballa, where no Dragon has ever been sighted.

Each Dragon is believed to possess intelligence equal to—or even greater than—that of Humans.

Very little is known about them.

Some scholars believe they existed long before the appearance of Adam Dungeon.

Others believe they are directly connected to its creation.

No theory has ever been proven.

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Relations Between the Great Kingdoms

Although the Four Great Kingdoms are officially at peace, old rivalries and prejudices still exist.

Relations between Marvok and the other kingdoms remain largely stable due to trade and the Adventurers Guild.

Koram and Alavur maintain the most fragile relationship, largely because of the historical conflict surrounding the Dark Elves.

Ruballa remains politically neutral whenever possible, preferring to focus on protecting its own people.

Open war has not occurred for over a century.

However, many believe that a single major incident could shatter the peace once again.

Mana Crystals

When Adam Dungeon first appeared, another mysterious phenomenon occurred alongside it.

A previously unknown mineral emerged across the world.

This mineral became known as the Mana Crystal.

No one knows where Mana Crystals came from or why they appeared at the same time as Adam Dungeon.

Mana Crystals naturally store enormous amounts of mana and have become one of the world's most valuable resources.

They are used to create:

• Magical Staffs
• Wands
• Rings
• Pendants
• Enchanted Weapons
• Enchanted Armor
• Magical Tools
• Mana Potions
• Health Potions
• Countless magical artifacts

Without Mana Crystals, modern civilization would be impossible.

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Magic

Magic is the manipulation of mana.

Every living being possesses mana.

However, the amount of mana varies greatly from one individual to another.

A person's magical ability depends on three factors:

• Natural mana capacity.
• Knowledge.
• Experience.

Someone born with little mana can still become an extraordinary mage through years of study and training.

Likewise, someone born with immense mana may never become truly powerful without discipline.

Magic follows rules.

It cannot create something from absolutely nothing.

Every spell consumes mana, and exhausting one's mana reserves can leave the caster unconscious or even close to death.

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Magic Schools

Over the centuries, the study of magic became increasingly refined.

Eventually, scholars classified magic into several different schools.

Examples include:

• Elemental Magic
• Healing Magic
• Barrier Magic
• Enhancement Magic
• Illusion Magic
• Summoning Magic
• Curse Magic
• Spatial Magic
• Light Magic
• Shadow Magic

Although these are the most common branches, countless rare and unique forms of magic exist.

Some individuals even develop entirely original spells never seen before.

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Magical Affinity

Although anyone can learn nearly every school of magic, most people are naturally born with an affinity toward one or two specific branches.

These affinities allow spells to become stronger, consume less mana, and be cast more efficiently.

However, affinity is not destiny.

A determined mage can master any form of magic through enough dedication.

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Magical Artifacts

By infusing Mana Crystals into crafted equipment, artisans can create Magical Artifacts.

Examples include:

• Weapons that strengthen themselves with mana.
• Armor capable of repairing itself.
• Rings that increase mana capacity.
• Pendants that improve spellcasting.
• Bags with magically expanded storage.
• Floating lanterns.
• Communication devices powered entirely by mana.

These artifacts are common throughout everyday life and replace many technologies that electricity would otherwise provide.

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Monsters

Monsters are magical creatures born from mana.

Most inhabit forests, mountains, deserts, oceans, and Dungeons.

Some possess intelligence comparable to Humans, while others behave like wild animals.

Many monsters can be domesticated under the right circumstances.

Others remain hostile throughout their lives.

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Monster Classification

All monsters and magical beasts are classified using the Star Rating System.

Rather than measuring only physical strength, this system evaluates:

• Magical power.
• Combat ability.
• Intelligence.
• Destructive potential.
• Overall threat level.

Examples:

• Slime — ★½
• Goblin — ★★
• Dire Wolf — ★★★
• Orc Warrior — ★★★★
• Wyvern — ★★★★★★

The highest known classification is ★★★★★★★★★★ (10 Stars).

Very few creatures have ever received this rating.

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Dragons

Dragons stand at the very peak of all known magical creatures.

Only three have ever been officially recorded.

Each Dragon resides within the territory of one of the Great Kingdoms.

No Dragon has ever been seen in Ruballa.

Unlike ordinary monsters, Dragons possess intelligence, emotions, and personalities comparable to intelligent races.

Many scholars believe Dragons know the truth behind Adam Dungeon but have chosen to remain silent.

Whether this is true remains unknown.

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Forbidden Magic

Certain forms of magic have been declared illegal throughout the world.

These spells are collectively known as Forbidden Magic.

A spell is classified as Forbidden if it meets at least one of the following conditions:

1. Catastrophic Destruction

Magic capable of devastating cities, kingdoms, or entire regions.

2. Violation of the Natural Cycle

Magic that interferes with life and death.

Examples include resurrection, true immortality, or stealing another person's lifespan.

3. Self-Destructive Magic

Magic that inflicts severe physical damage upon its caster in exchange for overwhelming power.

Possessing or using Forbidden Magic is considered a serious crime in nearly every kingdom.

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Ancient Magic

Long before modern magic was categorized into schools, ancient civilizations practiced mysterious forms of spellcasting now referred to as Ancient Magic.

Most of these techniques have been lost.

Fragments of Ancient Magic survive within forgotten ruins, hidden grimoires, and the Ancient Library of Alavur.

Many Forbidden Spells originated from Ancient Magic.

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Education

Children begin learning basic mana control from an early age.

Those with exceptional talent often attend prestigious Magic Academies, where they study spellcasting, history, combat, magical theory, and Dungeon survival.

Others choose military training, craftsmanship, alchemy, or the Adventurers Guild instead.

Formal education is available to every race, although social prejudice still exists in many regions.

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The World's Greatest Mystery

Despite more than fifteen centuries of research, countless questions remain unanswered.

No one knows:

• Who created Adam Dungeon.
• Why Dungeons continue appearing across the world.
• Why Mana Crystals appeared simultaneously with Adam Dungeon.
• Why Dragons are so few in number.
• What lies beyond the 331st Floor.
• Whether Adam Dungeon even has a final floor.

Many scholars believe every one of these mysteries is connected.

Until someone reaches the end of Adam Dungeon...

The truth of the world will remain unknown.