Kaina of the Great Snow Sea - S01

<p>Humanity is on the verge of extinction. In a world covered in snow, where water has become scarce, the last livable lands sit at the base of giant Orbital Trees spread across the ruined Earth. Legend says there is a sage who knows how to produce water in abundance and save mankind.</p> <p>Ririha, the princess of Atland, rides an organic hot-air balloon to the top of an Orbital Tree, hoping to meet her country's savior. When she reaches the Canopy, a place that looks like an endless window of transparent ice, she meets Kaina, one of the last men alive up there. But the man she was looking for is nowhere to be found.</p> <p>Unable to return home on her own, the princess gets help from Kaina, who is eager to explore the surface world he believed was empty. As Kaina learns about the war against Ririha's country, the hostile and technologically advanced nation of Valghia, and other dangers of the surface, he realizes that escorting her will be harder than he imagined.</p>