The series was published in Shogakukan's Monthly Ikki from December 2012 to September 2014, when the magazine ceased publication.

A 12-episode original net animation (ONA) adaptation produced by Polygon Pictures premiered on Netflix in November 2019.

The dignity of human beings and the future of Imperial City are in the hands of an ongoing battle between Levius and his opponents.

[5][6] It was serialized in Shogakukan's Monthly Ikki from December 25, 2012, to September 25, 2014, until the magazine ceased its publication.

[10][11][12] Shueisha republished the series in two volumes under the Young Jump Comics imprint on April 19 and May 17, 2019.

[16] Shueisha collected its chapters in ten tankōbon volumes, released from December 18, 2015,[17] to August 18, 2021.

[21] A 12-episode original net animation (ONA) adaptation, produced by Polygon Pictures premiered worldwide on Netflix on November 28, 2019.