Chiikawa is a Japanese manga and anime series created by Nagano, following small cute characters in a surprisingly tough world. Usagi, the excitable rabbit friend, became a fan favourite for loud, unpredictable outbursts that contrast with the show's soft art style. This drawn-out shout is one of Usagi's signature vocalisations, shared widely in fan edits, stickers and short videos online. As Chiikawa grew internationally through social media, the sound became a standalone reaction clip used far beyond the fandom itself.