Zundamon began as a mascot fairy for zunda mochi, a sweet edamame paste from Miyagi in Japan's Tohoku region, and later became a popular VOICEVOX text to speech voice. As VOICEVOX skits spread on YouTube and Nico Nico Douga, her bright delivery became shorthand for cute, over the top reactions in anime style edits. Fans also pair it with other Japanese reaction clips like Japanese YOOOO and NANI SORE in meme compilations. Short clips like this one travel easily on social video, which keeps the character recognisable even outside full dialogue scenes.