In a distant future where the sun no longer shines, Toshiro Kamiya gives up his body to a sinister floral metamorphosis for a payday.Kamiya is trying to make the most of the time he has left before completing his spiriflor transformation. But when his childhood friend Hourai becomes the latest victim of a mysterious spiriflor that somehow remains capable of humanlike movement and functioning, he finds himself drawn into the hunt for this deadly creature.Kamiya is trying to make the most of the time he has left before completing his spiriflor transformation. But when his childhood friend Hourai becomes the latest victim of a mysterious spiriflor that somehow remains capable of humanlike movement and functioning, he finds himself drawn into the hunt for this deadly creature.