Kasane Teto debuted in 2008 as an April Fools joke fake Vocaloid before becoming a beloved UTAU voicebank in her own right. She gained wider fame through the 2008 song Triple Baka alongside Hatsune Miku, and fans cemented her image with twin drills, a playful attitude and an obsession with baguettes. Short name-call clips like this Teetoo chirp spread through anime edits, fan animations and soundboards, where her instantly recognisable voice became shorthand for cute, chaotic Vocaloid humour.