月刊IKKI
"No. 5" is written and illustrated by Taiyō Matsumoto. It began in the first ever issue of Shogakukan's "Spirits Zōkan Ikki" (re-branded as "Monthly Ikki" in 2003), released on November 30, 2000. The series finished in the March 2005 issue of "Monthly Ikki", published on January 25, 2005. Shogakukan has compiled its chapters into eight "wideban" volumes, released from November 30, 2001 to February 28, 2005. Shogakukan would later re-released the series into four deluxe volumes from November 30 to December 26, 2005.