長鴻出版社
Written and illustrated by Setona Mizushiro, "Shitsuren Chocolatier" was serialized in Shogakukan's manga magazine "Rinka" starting on February 14, 2008. It transferred to "Monthly Flowers" in the November 2010 issue (released on September 28, 2010) and completed its serialization in the February 2015 issue (released on December 27, 2014). Shogakukan collected the individual chapters into nine volumes published from January 2009 to February 2015. Internationally, "Shitsuren Chocolatier" is licensed in France by Kazé Manga and in Taiwan by Ever Glory Publishing.