A manga adaptation illustrated by Mutsumi Banno was serialized in Shogakukan's Monthly Shōnen Sunday from May 2009 to February 2011.

A live-action film, Mumon: The Land of Stealth, premiered in Japan in July 2017.

[1] A manga adaptation illustrated by Mutsumi Banno was serialized in Shogakukan's Monthly Shōnen Sunday from May 12, 2009,[2] to February 12, 2011.

It includes collaboration from Banno, Ashibi Fukui, Kōnosuke Saeki, Hayato Asaki, Hiko and Yuto Sano.

[8] A live-action film adaptation of the novel, titled Mumon: The Land of Stealth, premiered in Japan on July 1, 2017.