This sound is commonly recognized as Ryuji Sakamoto's "For real?" line from Persona 5, the role-playing game released by Atlus in 2016. The quote became a familiar reaction clip among Persona fans and spread through gaming memes, anime-adjacent edits, and short reaction videos. Its popularity comes from how concise and recognizable the delivery is: creators can signal disbelief in less than a second. It still shows up in fan edits and joke compilations because it is easy to place and instantly understood by people who know the game.