Kafka wants to clean up kaiju, but not literally! Will a sudden metamorphosis stand in the way of his dream? With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organization tasked with the neutralization of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed of joining the force. But when he gets another shot at achieving his childhood dream, he undergoes an unexpected transformation. How can he fight kaiju now that he's becomes one himself?! When the final test of the Defense Force screening exam ends, a mysterious humanoid kaiju revives a neutralized honju and sics it on Kikoru Shinomiya and the rest of the examinees. Just when Kikoru seems to be at the end of her rope, Kafka rushes to her defense! But who is the humanoid kaiju, and what is their goal?!.