Yabuki Joe experiences sadness and despair following a significant event. To move on, he abandons the gym and embarks on a journey. Along his travels, he encounters individuals such as Wolf Kanagushi and Goromaki Gondo who inadvertently reignite the pain within him. As a result, Joe ends his wanderings. Upon returning home, Joe resumes his boxing training but remains hindered by internal struggles that are unbeknownst to himself and his trainer. To address these issues, Carlos Rivera, a renowned boxer from Venezuela, is invited to assist Joe in overcoming them.