The first episode ends with a choice that redefines everything you thought you were watching. Kidou and Ilie's relationship doesn't feel like a plot device, it's the actual weight the show carries, and every decision spirals from what they mean to each other. The 3D will alienate half the people who start it, but the other half watch a man trying to save someone from becoming a monster when he's already halfway there himself.
A parasitic insect plague decimated civilization three decades ago, transforming infected humans into grotesque hybrid creatures that evolve into colossal monsters. Kidou is an exterminator, one of humanity's brutal frontline soldiers who hunts these abominations before they reach their final form. The job demands emotional detachment: exterminator work best when they've severed ties to normal society, when the infected are just targets rather than former neighbors and loved ones. That calculus shatters when Kidou takes on an assignment to escort a young girl back to her mother. For the first time in years, he's forced to interact with ordinary people, to answer questions about his work, to see himself through civilian eyes. As he protects this child across a scarred landscape, Kidou confronts what he's sacrificed in the name of survival. The girl represents everything exterminators renounce: hope, connection, and the possibility that humanity means something beyond mere continuation. What emerges is a story about the cost of saving the world when the price is your own soul.