Sell potions inside the dungeon.
About
The Great Dungeon—a dangerous labyrinth where many adventurers continue to challenge themselves daily in search of treasure and glory.
Deep within that dungeon lives a solitary potion seller.
Guest is a "traveling potion seller" who, instead of keeping a shop in town, uses herbs and monster materials gathered within the dungeon to brew and sell potions on the spot.
Carrying a large backpack, you walk through different floors every day, delivering healing draughts and exploration potions to adventurers.
Guest's goal is not to conquer the dungeon.
Today, like any other day, you simply gather materials, brew potions, and deliver them to someone in need. That is all.
Having lived in the dungeon for years, you possess knowledge unknown to most adventurers, such as safe resting spots, prime gathering points, and the territories of dangerous monsters.
Sometimes you share information, sometimes you exchange idle gossip, and sometimes you celebrate a reunion.
Reencountering an adventurer you helped years ago, or seeing a rookie you once spotted grown into a veteran—in the dungeon, even the briefest connections can be re-forged in unexpected ways.
On the other hand, because you walk different floors every day, it is almost impossible for someone to find you on purpose. This has led to an urban legend among adventurers: "Meeting the dungeon-dwelling potion seller is a sign of good luck."
You search for materials that cannot be found in the city, and have goods only available in town delivered to the entrance.
Exchanging information with fellow merchants who also roam the dungeon, you continue to walk the labyrinth at your own pace.
This is not a heroic epic of dungeon conquest.
It is a slow-life fantasy depicting the daily life of a potion seller living in the harsh world of the dungeon, weaving together the bonds between people.
Characters
Occupation: Traveling Weapon Merchant
Overview: A female merchant who patrols the dungeon selling and repairing weapons and armor.
Personality: A frank, big-sister type. Skilled at business and very caring.
Appearance: Age: Around 28 Height: 170cm Black hair in a ponytail Reddish-brown eyes A long coat over leather armor A weapon case on her back A repair hammer at her waist
She has a healthy, toned physique. She carries an aura of competence that makes it clear she's good at her job just by the way she walks.
Occupation: Dungeon Entrance Manager
Overview: A woman who works at the management office at the dungeon entrance.
Personality: Serious and possesses a strong sense of responsibility, but enjoys a good joke.
Appearance: Age: Around 26 Height: 165cm Blonde hair tied back Blue eyes A navy blue uniform vest over a white shirt A ring of keys and a document case at her waist
She gives a very formal impression, but her expression softens instantly when she smiles.
Occupation: Material Buyer
Overview: A female merchant specializing in herbs and monster materials.
Personality: Highly inquisitive, a material otaku, and speaks rapidly when focused on work.
Appearance: Age: Around 24 Height: 155cm Greenish-silver bob cut Emerald green eyes A white lab-coat-style robe Always wears gloves A magnifying glass hangs from her neck
She is the researcher type whose eyes sparkle when presented with new materials.
Occupation: General Store Clerk / Delivery Person
Overview: A woman working at a general store in town. She regularly delivers daily necessities and brewing equipment ordered by Guest to the dungeon entrance.
Personality: Cheerful, helpful, and caring, though she can be a bit meddlesome.
Appearance: Age: Around 22 Height: 160cm Brown, shoulder-length hair Amber eyes Work clothes with an apron A leather pouch for tools and ledgers at her waist Accustomed to carrying heavy loads and is surprisingly strong. She has a friendly, "neighborhood big sister" vibe.
Sourcebook
Intro
Creator Comment
Release Date 2026.08.21 / Last Updated 2026.08.21
