Danna ga Nani o Itteiru ka Wakaranai Ken

is a Japanese 4-panel manga series by Cool Kyōshinsha. It is serialized online and published by Ichijinsha since 2011. An anime adaptation began airing in Japan on October 4, 2014 and finished airing on December 25, 2014. A second season began airing on April 2, 2015 and finished airing on June 25, 2015.

Plot
The manga follows the daily life of an earnest, hardworking office lady named Kaoru and her otaku husband, who is totally immersed in a certain huge net bulletin board system.