Ajia-do Animation Works Inc. (Japanese: 株式会社亜細亜堂, Hepburn: Kabushiki-gaisha Ajiadō) is a Japanese animation studio established on October 4, 1978. It is noted for anime series including Spirit of Wonder, Absolute Boy, Izetta: The Last Witch, and several others, including the long-running NHK series Nintama Rantarō. Its name can be translated as "Hall of Asia."