The stalk of Shadow Mountain Flying Fish comes from the 21st episode of Volleyball Boys. In Volleyball Boys, the hero shan ying Xiong Fei is called shan ying Xiong Fei, because his Japanese is very similar to Tobio's, which is the origin of shan ying Fei Yu's stem, and because Kan said he was unstoppable, shan ying was like a duck to water, and Yamaguchi and the moon filled his mind with flying fish. In an animated film, shan ying became a flying fish, which is why everyone called him shan ying Fei Yu.