A wayward hero named Akatsuki has come back to his world, along with a beautiful girl called Miu who is the daughter of the Last Dark Lord, whom he defeated in battle.

The light novel series written by Tetsuto Uesu and illustrated by Tamago no Kimi was published by Hobby Japan in eleven volumes from May 1, 2010 to February 28, 2013.

A manga adaptation illustrated by Haiji Nakasone was published in Hobby Japan's web magazine Comic Dangan from January 20, 2012 to June 21, 2013 and compiled into three volumes.

[15] A 12-episode anime adaptation by Arms and directed by Rion Kujō began aired between July and September 2012.

Seven special short episodes titled "Hajirai Ippai" (numbered 0 to 6) were also included with the Blu-ray releases.