No verified source, artist, or release year has been documented for the upload titled Katernai Nemuranai, which appears to come from a user-generated soundboard with minimal metadata. The wording resembles romanized Japanese built around nemuranai, meaning not sleeping, which likely explains its pickup as a late-night meme clip. Like many obscure board uploads, it seems to spread through short edits and reaction compilations rather than any official release, kept alive by creators who enjoy its odd, catchy phrasing.