K.O.マサトメ appears in the table of contents of 17 Weekly Shonen Jump issues (週刊少年ジャンプ, Shueisha), between 1996 and 1996. Its first chapter appears in issue 22-23, 1996, published May 13, 1996. Its final chapter appears in issue 40, 1996, published September 16, 1996.