Monthly Ikki
"Tetsuko no Tabi" debuted in Shogakukan's "Spirits Zōkan Ikki" (re-branded as "Monthly Ikki" in 2003) on November 30, 2001. The series finished in the October 2006 issue of "Monthly Ikki", published on August 25, 2006. Shogakukan compiled its chapters into six "tankōbon" volumes, released from November 30, 2004 to February 28, 2007. The series was again intermittently serialized from 2007 to 2008, and these chapters were compiled in a volume on February 25, 2009, titled "Tetsuko no Tabi Plus".