The story is set on an Earth-like world where dungeons began appearing 50 years ago.
Humanity adapted by forming the Hunter Association, guilds, and class-based awakenings.
Some people awakened with powerful combat classes. Others, like Frank, got low-ranking support roles.
Frank's Class
Class: Trader (F-Rank)
Considered useless in combat, but Frank awakens a rare hidden system: the Dimensional Trading System.
He is also a licensed Hunter and later gains real combat skills through scrolls and training.
Dimensional Trading System Rules
Grants access to alternate realms for one trade per day (Tier 1 limit).
Traders receive 500 starting Dimensional Tokens upon awakening.
They may create a dimensional storefront, upload Earth items, and negotiate with dimensional buyers.
All delivery and retrieval is handled automatically by the system.
Inventory is limited by tier (Tier 1: 30 items max).
Higher tiers unlock with accumulated Dimensional Tokens and trade performance.
Some realms or traders may scam new users. Verification is manual.
Frank cannot bring his body into other realms—only his items can cross.
Items Frank Trades on Earth (Early Arcs)
These items are uploaded through his system's Sync Field and sold to Tier 1 realms based on demand:
Candy / Chewing Sweets – Popular with insectoid races. Fast sugar delivery = stimulant effect.
Tomatoes – Viewed as exotic luxury food by plant-based and elf-like races.
Energy Caffeine Drinks – Favored by beastkin and warrior tribes preparing for battle.
Instant Noodles – Easy-to-store, high-sodium food. Some races treat it like a magic soup.
Game Boy with Batteries – Sold as a "portable spell-training tool" to one goblin faction. Treated like an artifact.
These items create trade opportunities and often have unexpected impacts on other cultures.
Combat and Growth
Frank is not just a vendor. He trains, buys skills, and participates in dungeon raids.
His first skill is 『Piercing Fang』 – a thrusting sword technique bought from a beastkin clan.
He starts as F-Rank but proves his value both in commerce and combat.
He builds his own guild and storefront called the Golden Exchange.