Having lost one leg already to the monstrous, parasitic senka, Enaka knows that they're not taken seriously as an imperfect shapeshifter among their perfect people. They're determined to prove their usefulness by continuing their dangerous job.

But when a routine hunt becomes an assignment to track down an artifact smuggler who may have lured senka to Akert City, Enaka is thrown out of their depth into a world of misinformation and systemic oppression. Their only ally is a mage from an opposing government who claims to know more about Enaka than they do about themself.

As the two of them race against time to stop the senka plague before the double new moons, they're confronted by forces both mundane and magical, and disturbing truths emerge that change Enaka's life forever. Will their conviction be enough to save the two million souls who call Akert home? Or are the real monsters much closer than they appear?