
Haruto informs the group that a massive and lethal Zone is approaching the Planet. With time running out, Ibara comes up with a last-ditch plan to evacuate everyone from the area using an old abandoned train.
In the not-so-distant future, a catastrophic event has turned the old capital of Japan into a wasteland, forever changing the lives of its people. Decades later, three schoolgirls set foot into the now forsaken city.
The girls encounter a man searching for his missing child. Hearing that the child may have wandered into a dangerous area, the girls rush to find the child before it’s too late.

Vice Principal Mishima learns from the rescued Tanizaki about a man known as the Delivery Man believed to be their leader. Meanwhile, the girls follow a lead that unexpectedly takes them to the Delivery Man himself.