The line comes from the Latin American Spanish dub of Kaguya-sama: Love Is War, the romantic comedy anime about two student council members too proud to confess their feelings. The phrase 'tal vez sí, tal vez no' became a standalone meme audio because its bouncy, noncommittal tone fits any hesitant moment, and Spanish-speaking meme pages and soundboards picked it up as a reaction clip. Like many anime dub one-liners, it spread through short edits and chat audios rather than a single viral video, and it remains popular as a quick, funny way to dodge a question.