A sky-wanderer's logbook. Begin the ascent from solid earth, through cloud layers, past the boundaries of atmosphere, into the infinite dark beyond.
Weather lives here. Cumulus towers rise like castles of water vapor. The last birds circle below as the air thins and temperature drops. The quest enters its first threshold.
No weather. No turbulence. Just the ozone layer's faint violet shimmer and the curvature of the earth becoming visible at the horizon. Sound cannot travel here. Only light.
Sora — the sky — ends. And the quest continues into what lies beyond it. Stars unobscured by atmosphere, the aurora below like a green curtain, and the understanding that the sky was never a ceiling. It was a door.