Chiikawa is a Japanese manga and anime series created by Nagano, following a small, timid hamster-like character and friends Hachiware and Usagi in a world that is cute but quietly harsh. Short voice clips from the anime spread widely on social media because the characters express big feelings in very small, sincere sounds. This cheer up moment became useful as a reaction sound because it conveys support without words most viewers need translated, and its brevity makes it easy to drop into edits, streams and fan videos whenever a little encouragement is needed.