Originally Posted by Tenhou

Kairo also MEANS pocket hand warmer, it has nothing to do with Egypt to begin with just lazy translations. http://jisho.org/search/%E6%87%90%E7%82%89

THAT'S what a kairo is? Huh... I kind of wondered. After getting bouquets, stamps, and trophies I saw kairos and was like "what the fuck's a kairo?"

And now I know.