ジャンプスクエア
is a Japanese manga series created by Hiroyuki Takei and Stan Lee (and his production company Pow Entertainment). The plot of the story depicts a conflict between good and evil, implicated through the "Karakuri Dôji" created by the character Dr. Dunstan. The pilot chapter was originally published in a special issue of "Jump Square", called "Jump SQ.II", on April 18, 2008. The series "Ultimo" was first serialized in "Jump Square" in March 2009, and it continued monthly serialization. Shueisha also published "Ultimo" in "tankōbon" format—the first published on July 3, 2009, and the fifth on November 4, 2010.