A broke young boy decides to delve into dungeons.
However, to register as a dungeon-mercenary, he must purchase a skill costing a hefty 100,000 yen—a sum far beyond his means.
Just when despair sets in, he discovers a skill labeled as a “Special Sale” for only 100 yen. Though its suspiciously low price—three digits below any other skill—raises alarms, desperation drives him to buy it.
The skill is called Weapon Crafting, a niche ability that merely allows the creation of weapons. Unlike other combat-oriented skills, Weapon Crafting is ill-suited for battle.
Yet, through clever use and sheer determination, the boy survives the dangers of the dungeon, overcoming challenges one after another. He hunts monsters to collect magic stones, which he then uses to forge weapons, enabling him to take on even stronger foes. Through this cycle, he begins his climb as a mercenary.
Together with his companion, Hotaru, the boy’s youth becomes consumed by the world of dungeons.
