The clip comes from Su, Suki Nanka Janai, a character song performed as Arisa Ichigaya from the BanG Dream franchise, where the shy keyboardist often panics when teased about her feelings. Fans cut the awawa stammer from the track and shared it as a standalone reaction, similar to other short anime vocalisations like tuturu. Its appeal is how specific Arisa sounds, nervous, sincere and completely flustered, so the sound spread through anime edits and soundboards as shorthand for an embarrassed denial rather than staying only inside the song.