A kappa (河童, lit. river child), also known as kawatarō (川太郎), komahiki (駒引, lit. horse puller), or kawatora (川虎, lit. river tiger) is a yōkai demon or imp found in traditional Japanese folklore. The name is a combination of the words kawa (river) and wappa, a variant form of 童 warawa (also warabe) "child". In Shintō, they are considered to be one of many suijin (水神,“water deity”), their yorishiro, or one of their temporary appearances. A hairy kappa is called a hyōsube (ひょうすべ). In Japanese Buddhism, they are considered to be a kind of hungry ogre. Therefore, Sha Wujing, who is a character from...