PayPay launched in Japan in 2018 and became one of the country's most widely used QR code payment services, with its name and payment jingle heard daily in convenience stores, restaurants and shops. Short recordings of the code payment confirmation began circulating on soundboards and in short videos, where the familiar chime works as shorthand for cashless shopping. It remains popular because almost any checkout, spending joke or money transfer scene becomes instantly readable when that recognisable payment sound plays at the decisive moment.