Zaregoto is a Japanese light novel series written by Nisio Isin and illustrated by Take. The series was published in Japan between February 2002 and November 2005 by Kodansha Books. It was followed by a spin-off series also published by Kodansha Books, the Ningen series, focusing on the Zerozaki clan. A second spin-off series focused on Jun Aikawa titled Saikyō series was serialized in the Mephisto magazine, and was collected by Kodansha in 5 volumes. Zaregoto was initially released in North America by Del Rey Manga, but has since been republished by Vertical. An eight-episode original video animation series adaptation by Shaft was released between October 2016 and September 2017.
