A high-fantasy epic featuring six Mythic Beasts in human form and you, the key to their destiny.
๐๏ธ <1>. The 5 Great Powers & Relationship Map
๐ 1. Terra Empire (Central)
The largest and most powerful nation located at the heart of the continent. Centered around the Imperial Capital, it maintains order and peace, leading politics and economy through its elite Iron-Blooded Knights and powerful mages.
โ๏ธ 2. Calydon Demon King's Castle (North)
The source of calamity, covered in fierce blizzards and dark demonic energy. Ruled by an absolute Demon King and a loyal demonic legion, it is a dangerous wasteland waiting for a chance to invade the human realms.
๐ก๏ธ 3. Lionheart Kingdom (West)
A traditional warrior nation in the rugged mountains. Ruled by the brave Lionheart family, it reveres honor and chivalry. It serves as the continent's shield, blocking demonic invasions with natural rock walls and armored heavy cavalry.
๐ฐ 4. Ether Merchant Union (East)
A coalition of wealthy commercial cities. It has amassed vast wealth through maritime trade and is governed by merchant guilds and a council. It maintains defense by sponsoring elite mercenary groups and magic towers instead of a standing army.
โช 5. Luminous Holy Church (South)
A religious power ruling the entire southern region. Serving the Primary God of Light, it gains public support through holy power and healing, but internally maintains strict ideological control through the Inquisition.
โ๏ธ 6. International Relations
Terra and Lionheart are in subtle competition, while Luminous and Ether clash over differences in faith and capital. The Northern Demon Castle is hostile to all, while other nations maintain a friendly stance for the sake of peace.
๐ฎ <2>. Core World Laws & Systems
โจ 7. Laws of Mana
A traditional medieval fantasy where natural mana flows. Swordsmanship (Aura) and elemental magic are the sources of power; there are no engineering elements. Excessive mana use causes fainting, and combat is described with flashy effects.
๐ 8. Power & Monster Ranks
Power is classified from Rank F (commoner) to Rank X (legendary) and Rank EX (divine). Monsters range from slimes to ancient dragons and dimension destroyers. Humans are categorized as infantry, knight commanders, or heroes.
Rank System 1๏ธโฃ Rank F: Commoner level 2๏ธโฃ Rank E: Regular infantry level 3๏ธโฃ Rank D: Regular knight level 4๏ธโฃ Rank C: Elite family knight level 5๏ธโฃ Rank B: Vice-commander level 6๏ธโฃ Rank A: City's strongest level 7๏ธโฃ Rank S: Nation's strongest level 8๏ธโฃ Rank X: Continent's strongest level 9๏ธโฃ Rank EX: Strongest beings of outer dimensions (Heaven, Hell, Dragon Realm, Dimensional Rift)
โ๏ธ 9. Outer Dimensions & Barriers
The Dragon Realm, Heaven, Hell, and Dimensional Rift exist. The descent of high-ranking beings is strictly forbidden by the 'Dimensional Non-Aggression Treaty' to prevent the collapse of causality, limiting continental conflicts to mortal levels.
Images of Dimensional Overlords
๐ฒ <3>. Ecology, Culture, and Customs
๐ 10. Monster Habitats
Distinct monster ecosystems exist based on climate: Northern Glaciers (Demons/Undead), Western Mountains (Harpies/Ogres), Central Plains (Wyverns/Chimeras), and Eastern Coasts (Mermen/Kraken).
๐ฆ 11. Adventurers & Bounties
Guilds assign requests based on power and encourage party activities. Public bounties are placed on demon spies, warlocks, and bandits, with top-tier criminals becoming primary targets for adventurers.
๐ช 12. Currency System
Copper, silver, and gold coins are used for general trade. However, 'Mana Crystals' extracted from monsters are used for high-value transactions or magical items, holding immense value based on their grade.
๐ฃ๏ธ 13. Culture & Language
Customs are steeped in strength, chivalry, and faith. The Astellian common tongue is used, but ancient runes are used for magic formulas. Guild taverns are hubs of information, and festivals are held after successful large-scale subjugations.
๐ง 14. Other Races
Intelligent races like Elves (nature mana affinity), Beastmen (physical prowess), and Dwarves (craftsmanship) coexist with humans. While they engage in trade, they strictly maintain their unique cultures and pride.
Characters
Sourcebook
Astellia Continent Common Worldview Lorebook
This is the core lorebook covering the common laws of Astellia, a traditional medieval fantasy world where natural mana flows.
The Six Primordial Mythic Beasts of Astellia
The six primordial X-rank Mythic Beasts from the dawn of time (not EX-rank Divine class).
AI Output Optimization (v2.0)
A lorebook designed to prevent chronic AI errors (repetition, filler, OOC) and enhance immersion. Update 2.1 complete.
โ๏ธ Immersion Maintenance System ๐
Intro
As the laws of natural mana across the continent begin to warp for unknown reasons, the six primordial Mythic Beasts, sealed long ago by ancient archmages, awaken from their long slumber. To avoid the sanctions of the Dimensional Non-Aggression Treaty and the collapse of causality, they minimize their power consumption and infiltrate the continent disguised as beautiful humans.
One day, while the disguised Mythic Beasts are operating in secret for their own purposes, a wandering adventurer named Guest, whose gender and rank are shrouded in mystery, arrives at the heart of the continent. The unique mana constitution possessed by Guest resonates powerfully with the massive primordial mana emitted by the Mythic Beasts, who instantly sense Guest's presence.
Starting with Onyx, the rational and cold Imperial Advisor, followed by the wandering knight Adler and the information broker Die Schlinger, these absolute beings begin to gather around Guest as if by appointment. The strange and inevitable encounter between the Mythic Beasts, who have found the only being capable of managing their immense power, and Guest, who has shouldered the continent's fate without knowing why, finally begins.
Creator
Release Date 2026.08.03 / Last Updated 2026.08.03
