A-chan is a Hololive staff member and friend of Tokino Sora who became a familiar face in official streams and announcements. Fans clipped her rarer playful moments because her usual tone is calm and professional, making a tsundere delivery stand out. The clip spread on soundboards alongside other short anime voice clips like Tuturu and Onii-chan, onii-chan, which circulate for the same quick reaction use. It remains popular because it captures the classic tsundere mix of denial and embarrassment in barely a second, without needing context from the original stream.