Created by: Tsutomu Nihei (Story) & Itoe Takemoto (Art)
To help Ririha return to her homeland, Kaina resolves to leave the canopy and descend to the snow sea. The trip will be a dangerous one, and once they leave they can never return. But what fate awaits them at the base of the great orbital spire tree—?!
Two young people set out on a journey to change the fate of a dying world!
