Gawr Gura debuted in 2020 as a shark themed member of Hololive English, the English branch of the Japanese VTuber agency Hololive Production. Her streams quickly built a huge following, and her simple 'a' greeting and reaction became a running joke clipped and reposted by fans on YouTube, Twitter and TikTok. Because the sound is so short and recognisable, it escaped fan circles and became a general reaction clip for VTuber and anime communities, still used whenever a cute, blank response says more than words.