No.6, book 9
Atsuko Asano et Hinoki Kino2014

THE SKY IS BURNING.
With Rat critically injured protecting him, Shion finally returns to NO. 6. But what he finds there is not the tranquil utopia he left behind, but a city in the grip of panic and chaos. As the “holy city” collapses in on itself, Shion and Rat put the future of humanity — and their future together — on the line in the shocking final volume of NO. 6!