Yabuki Joe, devastated by a tragic event, decides to leave his gym and embark on a journey to escape his past. Along the way, he encounters influential figures like Wolf Kanagushi and Goromaki Gondo, reigniting his fighting spirit and prompting his return to boxing. However, Joe faces hidden internal struggles that hinder his progress in the ring, unbeknownst to both himself and his coach. To overcome these obstacles, the arrival of Carlos Rivera, a renowned Venezuelan boxer, is hoped to assist Joe in his path to emotional and physical recovery.