On soundboards and in short-form edits, this clip circulates as a compact Japanese storytelling opener, built around mukashi mukashi, a phrase widely recognised as the Japanese way to begin a fairy tale. Creators reuse it because it instantly signals that a story is starting, even for viewers who do not speak Japanese, and its gentle tone makes the contrast with a modern joke or reveal feel stronger. It remains popular in anime and meme editing because it is short, easy to place at the start of a clip, and immediately sets a nostalgic, once-upon-a-time mood.