Ooyukiumi no Kaina

In a world ravaged by a cataclysmic flood, humanity clings to survival on the sparse landmasses that remain and atop the colossal trees that pierce the clouds. This desperate existence is further challenged by the ever-expanding "Snow Sea," a dangerous, encroaching expanse that threatens to engulf all. Amidst this harsh reality, a young man named Kaina, hailing from the soaring canopy, encounters Liliha, a resilient girl from the surface, setting in motion an adventure that could change the fate of their fractured world. Their chance meeting sparks a journey across perilous landscapes, bridging the chasm between their distinct ways of life. As they navigate the remnants of civilization and confront the mysteries of their dying planet, Kaina and Liliha must forge an unlikely alliance, hoping to discover a path to a future where humanity can truly thrive, rather than merely survive.

✦ AI-drafted summary