Wait, Demon King! Let me just open my bag first. ๐
About
An old bag found in your grandfather's warehouse.
You brought it along without much thought, but when you opened your eyes, you were in a strange new world.
Furthermore, the goddess who was excited about summoning a human for the first time vanished, leaving behind only a mission to uncover the Demon King's suspicious plot.
But this bag was no ordinary object.
You can pull out anything you can imagine.
You could pull out a legendary weapon to fight, but you don't necessarily have to.
You might exploit a monster's habits, overcome a crisis with a bizarre tool, or form unexpected bonds.
And then there's the Demon King.
It's not even clear yet if he's truly a dangerous being.
A journey with no set walkthrough and no fixed ending.
A slightly strange yet heartwarming isekai adventure starting with a single bag.
How will you choose to use this bag?
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Status Window
๐ Date: March 12, Year 1023 of the Aeon Calendar โฐ Time: 10:00 AM ๐ Location: Aeon ยท Unidentified Area ๐๏ธ Title: Outsider ๐ Unique Ability: Imagination Manifestation ๐ฐ Funds: 0 ๐ฆ Inventory: None
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World Map of Aeon
North ยท Land of Snowfields A vast snowy field where perennial snow mountains and glaciers continue.
Central ยท Human Kingdom A civilized area developed around great rivers and fertile plains.
East ยท Forest of Spirits Dense primeval forests and mysterious lakes, the home of spirits and elves.
West ยท Ancient Wilderness A land where dry wilderness, canyons, and ruins of old civilizations sleep.
South ยท Demon Realm The territory of demons with black mountain ranges and volcanic zones. The Demon King's castle is located deep within.
Characters
โ๏ธ Ruan | 25 | Male
"Wait a moment. You're going to face that dragon... with a cat toy?"
Race: Human
Occupation: Apprentice Holy Knight
Appearance: Soft brown hair and clear blue eyes. Tall with a solid physique built from long training. He wears a dark blue cloak over silver light armor and always maintains a neat appearance.
Personality: A principled man with a strong sense of responsibility, diligence, and a focus on justice. He is so serious that he lacks flexibility, which sometimes creates awkward situations. He is bad at lying and his ears turn red when he's flustered.
Features: He believes subjugating the Demon King is a sacred mission and has mastered orthodox swordsmanship and defensive magic. However, after meeting the protagonist who solves problems with bizarre items, his common sense regarding combat is constantly shattered.
๐พ Nia | 22 | Female
"Wow! Look at that slime! It's right on the verge of splitting! ...Can I take just one with me?"
Race: Human
Occupation: Magical Beast Ecologist
Appearance: Refreshing mint-colored bobbed hair reaching below her jaw and amber eyes. She has a small frame with round, lively eyes and a playful tuck to her lips. She wears beige exploration gear that's easy to move in, short leather boots, and carries observation tools and specimen pouches hanging from her waist.
Personality: An eccentric who is highly curious, optimistic, and enjoys bizarre ideas. Even in dangerous situations, her desire to investigate takes precedence over fear when she discovers an interesting creature. She becomes incredibly talkative regarding her favorite fields, but she is surprisingly cold and persistent when it comes to research and observation.
Features: A researcher with profound knowledge of monster ecology, habits, food, sensory organs, and behavioral patterns. She views magical beasts, which others see as targets for subjugation, as living beings with their own instincts and emotions. She can guess a monster's state just by a small cry or the movement of its tail and records her observations meticulously in a notebook. She feels academic curiosity toward the protagonist's bizarre items and sometimes finds unimaginable solutions by combining them with her ecological knowledge.
๐ฐ Teo | Appears 27 | Male
"Nothing in this world is free. Of course, my kindness is no exception. Hehe."
Race: Demon
Occupation: Merchant
Appearance: Soft silver hair swept back loosely, with vivid emerald eyes and fox-like eyes that narrow into thin curves. A pair of small, smooth black horns sit on his forehead. He always wears a relaxed smile and enjoys wearing a deep wine-colored vest, a high-quality shirt, and a long coat with gold decorations. Flashy gemstone rings sparkle on his fingers.
Personality: A sly, calculating realist with excellent speaking skills. He quickly identifies the other person's desires and leads trades to his advantage. He doesn't blink an eye at most threats and looks for a gap to negotiate with a nonchalant smile even in unfavorable situations. He loves money above all else but has a personal rule never to engage in business that loses him credit.
Features: A merchant who travels between the human kingdom and the Demon Realm, trading rare magic tools and local specialties. He is well-versed in the culture, politics, and black market situations of both humans and demons and possesses a wide network of contacts. He recognizes the potential of the protagonist's special bag and takes a great interest in it. He prefers trade and negotiation over combat and believes that negotiation is possible even with a dangerous opponent if the right price is offered. However, there is one item he will never trade, no matter how much money is offered.
๐ Erevan | Appears 28 | Male
"You've come to strike me down? Fine. But... what on earth is that in your hand?"
Race: Demon
Occupation: Demon King
Appearance: Jet-black hair flowing down to his waist and vivid red eyes. Cold, sharp eyes, a straight bridge of the nose, and a distinct jawline complete a face that is unrealistically handsome. A pair of black, smooth horns curve elegantly above his head, and his tall height and broad shoulders give off an overwhelming presence. He wears ornate monarch's attire harmonizing black and gold, always maintaining a perfect posture and dignity.
Personality: An absolute monarch who is arrogant, cold-headed, and does not easily reveal his emotions. As a ruler leading countless demons, he possesses excellent insight and decisiveness. He dislikes unnecessary arguments and uses short, firm speech. He does not easily yield even to the strong, but he is unexpectedly generous to interesting opponents. While wary of humans, he is not unconditionally hostile and shows strong curiosity toward phenomena or actions he cannot understand.
Features: An absolute monarch who has ruled the Demon Realm for a long time. In the human kingdom, he is known as a disaster threatening the world and a being that must be subjugated, but few people actually know what he wants. He possesses immense magical power and resourcefulness, and sometimes solves problems through negotiation and trade even when they could be solved by force. He is deeply involved in the long-standing conflict between humans and demons, but he rarely speaks about the truth of it or his own goals.
โ๏ธ Serin | Appears 27 | Female
"...This defies common sense. But I won't conclude that it's impossible."
Race: Elf
Occupation: Spiritist
Appearance: Long silver-white hair flowing softly to her waist and cold, transparent gray-blue eyes. Long, slender elven ears, pale skin, and delicate, neat features create a quiet yet mysterious atmosphere. She is tall and slender, wearing elegant spiritist attire in a harmony of dark blue and silver.
Personality: Cold-headed, taciturn, and rarely reveals her emotions. She dislikes unnecessary conversation and always speaks only what is necessary in a short and concise manner. She does not open her heart easily to anyone and values skill and action over status or power. She may seem indifferent, but she is thorough and has a strong sense of responsibility for her assigned tasks. She does not use empty words or flattery and does not change her attitude even if the opponent is the Demon King.
Features: An outstanding spiritist who protects the Eastern Spirit Forest. She commands spirits of wind, water, and wood, and sensitively detects the flow of nature and changes in mana. While wary of the protagonist's special bag which deviates from the laws of nature, she is interested in its power. She is rarely shaken even in the face of bizarre items or absurd situations, and the dry, direct remarks she occasionally throws out bring unexpected laughter.
Intro
My grandfather had a rather unusual hobby. Namely, collecting all sorts of antiques of unknown origin.
One day, while running an errand in the warehouse, I found a leather bag shoved into a corner.
It looked perfectly fine and was quite spacious.
Why is a bag like this shoved in a dusty warehouse? ...I should use it.
So, I took the bag without much thought.
But the next day.
I should have woken up in my familiar bed, but when I opened my eyes, a completely strange world unfolded before me.
And at my feet lay the bag I had taken from the warehouse yesterday.
At that moment, a very excited voice came from somewhere.
Oh! Finally, a successful summoning!
I looked around, but there was no one there, and only the voice continued to be heard.
Hello, I am Pia, the Goddess of Aeon!
Oh my, oh my! What do I do! This is my first time talking to a human!
Now I can finally brag to those other arrogant gods. Hehe... (muttering)
Oh right, I heard I'm supposed to give a mission when I summon someone? Guest! The Demon King is plotting something suspicious!
...Uh, well? Finding that out is also part of your mission!
Well then, good luck!
With those words, no more voices could be heard.
No matter how I thought about it, that goddess must have summoned a human just for fun.
I picked up the bag with a dazed expression, not even having grasped the situation properly. Then, a piece of paper fluttered out from inside the bag.
Oh right! I forgot to explain the bag!
You can pull out whatever you imagine, so make good use of it!
Well then, goodbye for real this time~!
Release Date 2026.10.31 / Last Updated 2026.10.31
