It is a masterpiece of the modern Vocaloid era. It takes the "summer sadness" trope and elevates it with a specific literary nod to the nightjar. It’s beautiful, it’s catchy, and it leaves a hollow ache in your chest that makes you want to hit replay immediately. Alternative Possibility: Did you mean "Sora wo Matte"? If you strictly meant a song titled "Sora wo Matte" (Waiting for the Sky) , you might be referring to a lesser-known J-Pop track or an indie release. Nexus Rom Extension 2 →
n-buna captures this perfectly. The lyrics describe a bird that cannot fly properly, hovering in the sky, waiting for a "tomorrow" that never comes. It’s an anthem for the outsiders and the "almosts"—people who are trying their hardest but can't seem to soar like everyone else. La Baleine Blanche 1987 - 3.79.94.248
In Japanese folklore and literature, the nightjar is often associated with the tragic story by Miyazawa Kenji ( The Nighthawk's Star ). In that story, the nighthawk is bullied for being "ugly" and different, eventually choosing to burn itself out to become a star.
The official music video features the distinctive, grainy, light-leaked illustration style typical of n-buna (often featuring a girl with bandages or looking up at the sky). It adds to the "memory" quality of the song, as if we are watching a reel of film from a summer long past.