In a world where everyone enters dungeons to get rich, Souma lives as a “Crafter,” a weak class focused on making items.

But one day “I… I turned into a monster…!”

His little sister suddenly transforms into a monster, and the only way to save her is to gather an impossible amount of money—100 million gold.

To get it, Souma has no choice but to hunt monsters, craft powerful items, and sell whatever he can.

A thrilling dungeon fantasy full of battles, crafting, and survival begins now!