Nobody knows what actually happened to Nerima, and the show doesn't care enough to explain it. Z-chan and Gre-chan scavenge in the wreckage, build a house from garbage, and the comedy comes from treating the apocalypse like a roommate situation where the real disaster is just living together. Three episodes is barely enough time to realize this thing exists, let alone watch the joke finally land.
Nerima lies in ruins following a catastrophic photon energy disaster, though the truth of what actually happened remains murky. At the center of this wasteland stands a towering research facility, a monument to better days. Z-chan and Gre-chan make their home in the Shutter District at the tower's base, scrapping together materials to build Photon House, their salvaged sanctuary powered by leftover photon technology from before everything fell apart. The world has moved on. Cosmic Getter Rays now bathe the planet from above, reshaping the rules of survival. Yet the two girls refuse to abandon their corner of the ruined city. They navigate daily life with whatever energy they can scavenge, making do with the advanced technology that once seemed limitless but now feels increasingly precious. Robot Girls NEO combines post-apocalyptic atmosphere with comedic warmth, following two characters finding small joys and humor amid devastation. It's a show about resilience and friendship, where the stakes feel real but never suffocating, allowing room for laughter and human connection even when the world outside has fundamentally changed.