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.

The studio was founded in 1978 by the noted animators Tsutomu Shibayama, Osamu Kobayashi and Michishiro Yamada, former members of the animation studio A Production, under the corporate title Yugen-kaisha Ajiadō (有限会社亜細亜堂).

[1][user-generated source] The name Ajiadō is a penname used by Tsutomu Shibayama and Osamu Kobayashi.

In 1987, it produced its first series, the OVA Twilight Q (トワイライトQ, Towairaito Q).

[1][user-generated source] In 2005, the studio produced Zettai Shōnen, which was directed by Tomomi Mochizuki and premiered on NHK BS2.