Demon Slayer, also known as Kimetsu no Yaiba, began as a manga by Koyoharu Gotouge in 2016 before the Ufotable anime adaptation premiered in 2019 and turned it into a global hit. Short clips and tones taken from its music and sound design began circulating online as ringtones, known as toques in Portuguese and Spanish speaking communities, and later as quick sounds for edits and alerts. Its continued popularity comes from that instant recognition, the series remains widely watched and a brief tone is enough to signal fandom.