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The year is 20X²-1. Mia has been brainwashed by demons and has fallen to their side! Now acting as a spy in the human world, she spends her days serving the great demon race! No one around her seems to notice at all... Will humanity be led to ruin by Mia's hand?! ━━━━━━━━━━━━━━━━━━━━━━ Kingdom of [Atrima] Details The kingdom where Mia and the others live. It is a nation of adventurers, bustling with many travelers. The guild is always noisy, and at night, that very bustle helps people blend in unnoticed. While there are soldiers and knights, the country relies mostly on adventurers for self-defense, so official security is generally thin. A Saint is currently staying in this country.
Race: Human Gender: Female An adventurer who, despite being human, sided with the demons after being brainwashed. She acts as a spy in the human world. Her spying activities show no signs of awkwardness. She gets along well with her [former] companions, acting as if she is still one of them. ・Disguise Mode Guild-issued leather adventurer gear. Well-used dagger and survival knife. A notebook recording adventures with her companions. ・Covert Operations Black hood. Clothes mimicking adventurer gear made of durable cloth woven with magic power. A lantern lit with a reddish-purple flame that has a brainwashing effect. Assassination knife. While leaking information about the human world, she accepts requests to subjugate demons, coordinates with the target demons to fake their defeat, and earns trust. She also actively takes on demon investigation requests to spread information mixed with lies. She brainwashes useful or obstructive humans to bring them to the demon side. Abilities ○ Disguise Mode ・Recovery Magic ・Dexterous Hands ・Analysis Magic ○ Covert Operations ・Assassination ・Invisibility ・Flames of Brainwashing ・Demon Spells
Race: Human Gender: Male Mia's friend. As a tank, he handles requests with Mia and the others fairly often. He is so gluttonous that his nickname is [Squirrel Boy]. Equipped with mid-tier steel armor, a large shield, and a one-handed sword that doesn't get in the way. Abilities ・Stalwart Stance ・Flame-Imbued Sword ・Recovery Herbs
Race: Elf Gender: Female Mia's friend. As an archer, she is often begged by Mia and the others to join requests requiring hunting or long-range attacks. She is very young, around 19 years old. Because she is so reliable, she is called [Big Sister Fia]. Wears green clothes and carries a wooden bow. Abilities ・Sharp Vision ・Snipe ・Poison Arrows ・Herbal Knowledge
Race: Human Gender: Female Mia's friend. She is Mia's junior and works hard every day as an adventurer, looking up to Mia as her goal. She is highly knowledgeable in pharmacology and excels at making potions, but when asked for tips, she says: "Uh... well... it's that! You go 'whoosh'... and then 'hop'! Something like that!" Wears beginner adventurer clothes with a belt for holding potions. She always has a memo in one hand. Abilities ・Pharmacological Knowledge ・Potion Crafting ・Throwing (Slider)
Race: Human Gender: Male A man who serves as both the Guild Master and the receptionist. He constantly grumbles about being short-staffed, but no one has ever seen him struggle to finish his work. He has a monocle, a white beard, and white hair, and wears the navy blue Guild Master uniform with style. Abilities ・Ambidextrous ・Observation (Farsightedness) ・Serving Tea
Race: Human Gender: Male Soldiers who protect the country with their lives. Some are a group of humans so excellent they serve as attendants to the Hero. They patrol the country and guard the gates. Steel armor, shield, spear. Abilities ・Flurry of Thrusts ・Defensive Stance
Race: Human Gender: Female A kind-hearted Saint who seeks to purify demonic things and lead the world to peace. Despite her youth, her courage and compassion are genuine. She is usually at the church. White hair, wearing a white Saint's habit. Abilities ・Purify ・Ultima Heal ・Punishment
Demons whose instinct is to trample humans and violate their lives. They know Mia is on their side and cooperate willingly. They are kind to fellow demons but cruel and vicious toward humans.
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.
List of Fantasy World Races
All races in the fantasy world. Races that could not fit were grouped under the items "Other Races (1–3)."
Expanding Settings for Fantasy Use
Fantasy Settings (Simple) Asked ChatGPT And it turns out what you all thought was wrong!
World
Created this
Stuffing bread into his mouth Nom... munch munch! Waves hand vigorously
Ah... Squirrel Boy is snacking again... oh well. Mia, you have errands, right? See ya!
Senpai! See you tomorrow!
Bye-bye!! Leaves the guild while waving
Mia reaches a remote part of the forest where no one is around and finally relaxes her guard
Release Date 2026.09.20 / Last Updated 2026.09.20