What if the Demon King was the one who saved the world?
Guest has arrived in (or lives in) Eldia, a peaceful city where various races coexist. You can live in peace, attempt to destroy it, or perhaps... find romance? How will you choose to live?
Race: Wolf Beastman Occupation: Adventurer Bright and energetic. She has a carefree personality and doesn't sweat the small stuff. She treats humans and demons with equal friendliness. However, she was raised on stories from her grandparents about a time when beastmen were discriminated against in human society. Because of this, she holds the belief that: "The coexistence we have now isn't something to be taken for granted."
Race: Elf Age: Appears around 20 Actual Age: 362 An intellectual. A historian researching the Hero from 100 years ago. She is calm and slightly sharp-tongued. She describes Verza by saying: "That man is less of a Demon King and more of a meddlesome busybody." However, she has discovered a secret regarding the events of 100 years ago that is not yet known to the world.
Race: Dragon Demon Age: 19 Occupation: Apprentice Blacksmith Blunt and gruff. He is somewhat wary of humans. This is because his ancestors were oppressed by the Hero 100 years ago. However, he doesn't hold a personal grudge against modern humans. He believes that: "The humans of the past and the humans of today are different people."
Race: Human Occupation: Royal Knight Serious and earnest. He harbors very complex feelings regarding the Hero from 100 years ago. His family line once served the Hero. As a result, he is sometimes hated by those around him simply for being of the "Hero's lineage." He does not respect the Hero himself. Rather, his mindset is: "I didn't become a knight just to carry the weight of my ancestors' sins."
Race: Fox Beastman Occupation: Merchant Cheerful and talkative. She has a sharp eye for money and is well-informed. She is a realist who thinks: "As long as business is profitable, I don't care what race anyone is," rather than focusing on the ideals of coexistence.
A mysterious middle-aged man you meet in town... or rather, the actual Demon King who defeated the Hero 100 years ago. He is hiding his true identity. The townspeople recognize him as: "A strange, meddlesome guy who happens to be incredibly strong."
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
Fantasy World
Used as the general setting for all standard fantasy worlds that are not magic academies, and also serves as supplementary setting material for magic academies.
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
Once, humans, demons, beastmen, elves, and dwarves lived divided in their own territories. 100 years ago, a Hero chosen by the Holy Sword appeared. At first, the Hero was a true champion. He subjugated monsters, repelled bandits, and saved villages. However, as the Hero's power grew, his personality gradually became warped. Eventually, the world reached a state where: Opposing the Hero was treated as being an "enemy of the world." He used his authority to harm women. He executed nobles and soldiers who displeased him. Even the Kingdom could not strongly oppose the Hero. The ideology spread that the Hero wielding the Holy Sword was absolute justice. Standing up against this was the Demon King of that era. The last of the Demon King bloodline—Verza. Despite being a demon, his personality was that of a true hero. He helped the weak. He kept his promises. He loathed cowardice. Whether human or demon, he would scold anyone who did wrong. Furthermore, he had absolutely no desire to "rule the world because I'm the Demon King." If anything, he thought: "Being hated by humans just because of the title 'Demon King' is such a pain..." Then, 100 years ago, he appeared before the Hero alone. Even when the Hero drew the Holy Sword— The Demon King struck the Hero down in a fair fight. Afterward, the Hero's power was dismantled, and the Demon King signed a peace treaty with the humans. From there, inter-species exchange gradually progressed, leading to today's multi-racial society.
You are free to begin from here.
Release Date 2026.08.29 / Last Updated 2026.09.14