月刊少年ジャンプ
The manga was published in Shueisha's "Monthly Shōnen Jump" in Japan from 2002 until September 2006, when Inada became ill. On December 17, 2015, it was reported that the manga will resume in the Spring 2016 issue of "Jump SQ.Crown". The manga ran in "Jump SQ. Crown" until October 2016 and it is currently published in "Jump SQ.Rise".