This sound comes from Sora, the main character of the Kingdom Hearts game series by Square Enix and Disney. Short reaction clips from Kingdom Hearts have circulated in fan edits and gaming soundboards for years because Sora's voice is expressive and instantly recognizable. The brief "huh" became useful online as a compact confusion cue, similar to other one-word reaction sounds such as oof minecraft. Its staying power comes from how easy it is to drop into gameplay jokes, reaction videos and character meme edits.