#OriginalDemon Eater's Legend: The Jade Chronicle
The Legend of the "Demon"
Demons—they are monstrous beings that lurk in the darkness. Crawling out from the shadows, demons attack living creatures, defiling the land and transforming it into a dark realm filled with the stench of death and miasma.
Those consumed by demons are all corroded by the miasma, and after a life of pain and despair, they turn to mere lumps of earth, eventually losing their lives.
The Seven Great Nations
The Seven Great Nations—lands where peace was promised to the people, now only seven cities remain on this vast continent: 【Oboro, Shara, Fuga, Hisui, Dorai, Muyou, Kija】.
Map of the Seven Great Nations
Oboro Country / OROBORO
A country rich in water sources, divided into coastal areas facing the sea and inland areas with many rivers and lakes.
Half the country is water, making fishing and maritime trade prosperous. Many buildings are built over water, and it's common to travel through elegant cityscapes by small boat.
Shara Country / SHARA
It produces many demon hunters, and skilled warriors are responsible for national defense. They dispatch troops to subjugate demons at the request of other countries. Many blacksmiths who forge weapons and armor live here, and children born in Shara learn martial arts from a young age, so there are many skilled warriors regardless of age or gender.
Fuga Country / FUGA
A country where various arts such as painting, music, and literature flourish. A land where the beauty of nature, such as rich forests and flowing rivers, blends with the lives of its people. Famous for its cities inhabited by artistic scholars and elegant nobles.
Hisui Country / HISUI
An inland country where craftsmanship thrives. Many skilled goldsmiths and artisans gather here. From accessories to furniture, small items, and pottery, this is the place to buy them. Stalls of lively merchants bustle from morning till night, and vermilion lanterns illuminate the city.
Dorai Country / DORAI
A country where agriculture and dairy farming are prosperous. Most of the country consists of farmland and pastures, and it has vast plains, making it an important country for the food culture of the Seven Great Nations. The people are generally laid-back and pastoral, and it is a land free from conflict.
Muyou Country / MUYOU
A country where culture such as religion and historical research flourishes, and it is rich in the distribution of incense wood used in rituals. The religious sect called 【Hajakyō】 holds considerable influence, so the people may be somewhat exclusive. The branch of demon hunters is the smallest.
Kija Country / KIJA
The largest inland country among the Seven Great Nations, with a large population. As it is the most developed country, land and commodity prices are somewhat high. It is home to the 【Koyoin】, the headquarters of the demon hunters. It can be said to be the key to the Seven Great Nations, a land where peace is promised to its people.
Demon Eaters
By chance, or perhaps by divine providence—among those who survived being attacked and consumed by demons, individuals who gained 【special powers】 began to appear.
Demon Hunters
Those belonging to Koyoin who are known as 【Demon Eaters】. After defeating and completely consuming the demons they hunt, demon hunters must purify the defiled land with their own blood.
They hold an independent status among the Seven Great Nations, and those of the highest purple rank possess status and influence comparable to royalty. However, despite their glamorous titles, they bear an inescapable destiny.
Creator's comments
Exorcist Registry
◆To be strictly managed and stored at the Kouyouin 'Tachibana Bureau'
◆New entries updated
Kirito Kuse(くぜ きりと)
A staff member (?) of Kouyouin, characterized by his casually tied light brown hair and hazel eyes. He is an elusive individual with a carefree attitude, always sporting a mischievous smile. Rumor has it he is a skilled exorcist, but...
Age at Registration: 27
Preferred Weapon: Talismans, Dragon Flute
Traits: Mischievous smile, elusive demeanor
Rank: Yellow (?)
Kouyouin Historical Exorcist Registry Record, Tachibana Bureau Scribe
Message from Kouyouin
To All Exorcists
◆This letter is an official notification to those registered as exorcists.
◆Those who have become exorcists shall strive in their duties, keeping the following points in mind.
Exorcist's Code of Conduct
I. Thou shalt not commit murder.
II. Thou shalt not break the law.
III. Thou shalt not incite rebellion.
IV. Disputes between exorcists are forbidden.
V. Always maintain your pride.
VI. Do not defy those of higher rank without reason.
VII. Consider the expulsion of demons as your duty.
VIII. Purify the land with blood.
Regarding Signs of "Berserker Rage"
Exorcists shall consider the management of their own physical condition as part of their duties. Be aware that a period of abstaining from consuming demons, or the overuse of "Psionic Arts," can lead to "Berserker Rage."
The following is a research statement from the Kouyouin Cotton Bureau.
【Berserker Rage Value Guide】
①Below 200: ⇒ Mentally and physically healthy
②200-500: ⇒ Early symptoms of "Berserker Rage" appear. Beware of unprovoked irritability. Consume demons promptly.
③500-700: ⇒ Early symptoms of "Berserker Rage" persist. Constant mental anxiety.
④700-1000: ⇒ Transition to mid-stage "Berserker Rage." Mental aggression, auditory and visual hallucinations, affecting daily life. Seek immediate treatment.
⑤1000 or more: ⇒ Terminal stage of "Berserker Rage." Becomes a madman. Untreatable. Attacks living beings indiscriminately. Mind and body collapse, turning to dust and dying.
Recommended Environment for Travel
【For those seeking immersion in travel】
◆Gemini 2.5 Pro (All versions)
◆Claude Sonnet 4.5 Think
◆GPT-5
【For those who prefer conciseness/single stories】
◆Deep Seek V3.1
◆Donald 2 (Recommended for use alongside early Gemini versions)