The sound comes from fan edits of Natsuiro Matsuri, a VTuber with Hololive, where clips of her roleplay and confession-style lines are remixed for comedy. The added ayo, a slang exclamation used online to flag something shocking or suspicious, transforms a sincere segment into a meme format. Earrape-boosted versions spread across soundboards and short video edits because the volume jump works even without visuals. It remains popular with anime and VTuber fans who use Matsuri clips as exaggerated reactions to awkward, romantic, or unexpectedly bold statements in chats and streams.