Sushiro is a major Japanese conveyor belt sushi chain where diners order from a touch panel and their plates are delivered directly to their table, accompanied by a distinctive arrival sound. That in-restaurant cue became familiar to travellers and food creators filming their visits, and short clips of it began circulating online as a shorthand for sushi, Japan and a delivery arriving. It remains popular because it is instantly recognisable to anyone who has visited the chain, while also working as a clean, upbeat notification sound in food and travel edits.