おしりかじり虫 (2013)

"Oshiri Kajiri Mushi" (lit. "Bottom Biting Bug") is a Japanese children's song that first aired on the NHK program "Minna no Uta" in 2007. It is also the name of the artist and the character featured in the song. The original song was created by the artist duo Uruma Delvi, who were responsible for the concept, direction, lyrics, composition, and animation. The song was co-composed and arranged by Kimitaka Matsumae. Vocals use a voice changer and were performed by Uruma Delvi, Matsumae, and two other members. The choreography was done by Namika Sasuga. The protagonist is a fairy named Oshiri Kajiri Mushi XVIII, who bites people's bottoms to make them happy and energetic. Although he doesn't realize it, people become revitalized after being bitten. The song repeatedly uses the title "Oshiri Kajiri Mushi" and incorporates slang of the time, like "Chou ii kanji". Aside from the song, a TV anime series, "Anime Oshiri Kajiri Mushi," and related products were also released. In 2012, a second song, "Oshiri no Yama wa Everest," was released and also gained popularity. Overall, "Oshiri Kajiri Mushi" is a popular children's song and character in Japan, loved for its cute image and positive theme.