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The Hero Is Employed by the Demon Queen...and He Still Has to Conquer a Dungeon?!Now that he's officially joined the Demon Queen's army, Leo is ready to take on any challenge--except, maybe, a thirty-floor dungeon set up by Shutina's disciple and Leo's least-favorite curse-maker, Canaan. But Shutina's powers of persuasion (?) are hard to beat, and Leo is dragged off to face a collection of tricks and traps that might just be a little too hot to handle! As he descends the floors, though, little does he realize he's not the only member of the Demon Heart series left in the world, and one of his siblings may be at work behind the scenes...