Flower Comics
The manga premiered in Shogakukan's "Betsucomi" magazine in the November 2007 issue (released on October 13). It was serialized on an irregular basis until the June 2010 issue (released on May 13), after which it was serialized every other month. The final chapter was published in the January 2017 issue (released on December 13, 2016). Shogakukan collected the individual chapters into fifteen bound volumes under the Flower Comics imprint from August 26, 2008, to March 24, 2017. The manga is licensed in France by Kazé Manga.