Klee is a playable character in Genshin Impact, the fantasy action game released in 2020, where she is known as a cheerful young member of the Knights of Favonius who loves explosives. Short effort sounds like yoisho, a common Japanese exclamation made when lifting or pushing, appear throughout her gameplay and have been clipped by fans for use outside the game. They spread through Genshin edits, short-form videos and soundboards, where the contrast between her tiny, cute voice and a big effort makes the moment funny. That contrast keeps the clip useful long after its first uploads.