Fen appears on a user-generated soundboard under a single Chinese character, with no credited source, performer, or original work attached to the listing, so its history cannot be traced to a particular show, game, or recording. That lack of context is common for very short board clips, which often circulate because they are easy to reuse rather than because they carry a recognisable reference. At just over three tenths of a second, it survives as a compact utility sound: a brief accent that creators can drop into edits without needing an audience to recognise where it came from.