It centers on a freshman student, Katsuki Satoyama, as he discovers his near-legendary skill in boxing.

It was serialized in Shogakukan's Weekly Shōnen Sunday from August 2001 to March 2005, with its chapters collected in sixteen tankōbon volumes.

Mizutani then takes it upon herself to be Satoyama's trainer and manager in order to reach the championship belt.

The rest of the story shows his transformation of choosing boxing from a way to impress Mizutani to actually loving it and finally embracing it completely and becoming a pro boxer.

[1][2] Shogakukan collected its chapters in sixteen tankōbon volumes, released from February 18, 2002, to April 18, 2005.