Minna no Uta
The song first appeared in 2007 on "Minna no Uta", a Japanese TV program that targets children and is broadcast on Nippon Hōsō Kyōkai. "Oshiri Kajiri Mushi" means "[a] butt-biting bug" in Japanese, and the songwriters describe the protagonist as a magical bug that encourages people to interact with each other by biting their bottoms.