About the title
Hirooka Jinichi (Sato Koichi) is a former boxer. He lost a boxing match due to an unfair decision and moved to the United States. Forty years later, he returns to Japan and happens to meet Kuroki Shogo (Yokohama Ryusei) in a bar. Kuroki Shogo is a boxer going through hard times, as he too lost a fight because of an unfair decision. After Shogo loses to Jinichi for the first time in his life, he begs Jinichi to teach him boxing. Eventually, the two set themselves the goal of becoming world champions together and take on a battle in which they risk their lives.