If the original text was “Himawari wa Yoru ni Saku: In a Lullaby” or “in a Lull” (a common poetic subtitle), aggressive autocorrect or OCR (optical character recognition) scanning a damaged game disc might have rendered “inalull” as “inall.” Over time, search engines began associating the two.
Future work could explore social media sentiment analysis to trace how such phrases propagate as supposed real media. searching for himawari wa yoru ni saku inall
To help you get exactly what you're looking for, could you tell me: If the original text was “Himawari wa Yoru
“I swear I downloaded ‘Himawari wa Yoru ni Saku inall’ from Mediafire in 2009. It was a .rar file with three .exe files: morning, noon, night. The night one had a black sunflower icon.” — , Reddit searching for himawari wa yoru ni saku inall