At the end of the screening of second compilation movie, Overlord: Shikkoku no Tenshi (Overlord: The Dark Warrior), it was announced that Overlord will receive a second season.
The screening also revealed an announcement video revealing the second season.
Overlord is written by Kugane Maruyama with illustrations by so-bin, and was initially serialized as a web novel in September 2010.
Kadokawa began publishing the series under the Enterbrain label in July 2012.