The Overlord broadcast commemorative special program on streaming platform Niconico announced a fourth season and an anime film for Kugane Maruyama's light novel on Saturday. The new film will premiere under the subtitle Sei Oukoku-hen (Holy Kingdom Arc). The event also revealed a teaser visual for the fourth season (pictured). Lead staff and cast are returning from the previous anime installments at Madhouse.
Maruyama originally launched the dark fantasy series on the novel publishing website Arcadia in May 2010 and later on Shousetsuka ni Narou. Kadokawa began publishing the novel with illustrations by so-bin in July 2012 and shipped the 14th volume last March. Overlord has a cumulative 8 million copies of its volumes in print.
The light novel was first adapted into a television anime in Summer 2015 by animation studio Madhouse. The second season premiered in Winter 2018, followed by a third season in Summer of the same year. The first season was compiled into a two-part film in February and March 2017.
Yen Press licensed the light novel in English in October 2015 and began publishing the volumes the following May. The 12th volume shipped last June, with the 13th volume planned for a June 1 release. The company also publishes Miyama's manga adaptation and released the 12th volume on May 26 last year.
Source: Press Release