Paperback version now available from Monster Bunko!

Ciel, a young Dungeon Fairy, graduates from Dungeon Academy and is tasked with creating a dungeon by summoning a boss monster. However, the boss monster she summoned was a slime. Ciel lamented this worst-case scenario, her boss monster being a mere slime, but suddenly, the slime began to speak in human language.

This is the success story of Tard, the lowest-ranked slime on whom magic has no effect, as he embarks on full-scale dungeon management alongside Ciel, a girl seemingly forsaken by fortune!

However, when trying to recruit goblins, they're told they'd rather die than serve a slime; the dungeon entrance is suddenly occupied by bandits; companions might betray them at any moment; and the village they're trying to manage attracts all sorts of eccentric characters... will they truly be able to pull this off?