The Gentlemen's Alliance Cross is a shōjo manga series written and illustrated by Arina Tanemura, who also created the anime series called Full Moon o Sagashite which came out on April 6, 2002 and ended March 29, 2003. The Gentlemen's Alliance Cross premiered in the September 2004 issue of Ribon, running until the June 2008 issue. The 47 chapters were collected and published in 11 tankōbon volumes by Shueisha.