Ojarumaru(おじゃる丸) is a Japanese manga series created by Rin Inumaru in 1993. It was adapted as an anime series broadcast on NHK in 1998. The title character was originally voiced by Hiroko Konishi, but is now performed by Chinami Nishimura. The theme song is performed by Saburō Kitajima. The story focuses on the adventures of a 5-year-old Heian-era prince with a weakness for creme caramel. It also features his pet firefly, and a trio of young oni. This title is also known as Prince Mackaroo, as shown on the program guide for TV Japan.