In another world, an ever-growing Sea of Snow has engulfed the planet surface. The people struggle to survive living around the routes of a massive Orbital Tree, whose branches spread into the Celestial Membrane high above the ground. Change comes to this dying world after Kaina, a boy from the Celestial Membrane, encounters a girl from the surface called Ririha.

Release : January 12, 2023

Website : https://ooyukiumi.net

Total Eps : 11 / 23 minutes

Total Season : 1

Rating : 6.60