
Kamogawa's fists of iron leaving a print on Anderson's flesh.
Kamogawa begins training for his match against Ralph. One of his training methods for body blows consists of punching a tree log into a hill with only his fists and gloves which puzzles Dankichi as to why he is going through such reckless training. Kamogawa informs Dankichi that he does not have Nekota's speed or natural instincts, so he has to use a single punch to finish Anderson. As Nekota's body blows were notable, Anderson begins training his body to be as hard as rock in case someone in Japan is as good as Nekota. On the day of the match, Dankichi goes to the place Kamogawa was training at to get him, however, Kamogawa was gone and the log he was punching was pushed all the way into the hill, making Dankichi believe Kamogawa's fists were born from an iron will, as if his fists were fists of iron. At the Stone Hospital, Kamogawa informs Yuki about him going to his match, requesting for her to stay at Nekota's side forever. When the match is about to begin, Kamogawa requests to Dankichi a smack on the face to boost his spirits up. When both fighters in the ring, the match begins with Anderson feeling as if Kamogawa is insulting him as he chooses to not beat him in speed, but go into a hitting match. Kamogawa goes toward Anderson and lands a punch on Anderson's block. The punch leaves a print of a fist on Anderson's blocking arm.

Kamogawa defeating Anderson.
Nekota asks Yuki to take him to the Kōdan Gymnasium where Kamogawa is fighting to help him. When Miguel gave Anderson advice to avoid Kamogawa's body blows, Anderson begins to take the advantage from Kamogawa, who goes down many times after being outclassed in range. After the sixth round, Miguel advises for Anderson to use the Chopping Right to finish the match. In Kamogawa's corner when Nekota and Yuki arrives, Kamogawa realises the reason he is fighting is to not lose to them, as they continue struggling with their bodies, not knowing what could happen to them. Nekota then hits Kamogawa with the little strength he has, which fires him up as he never felt such a painful punch before. Before round seven begins, Nekota wants Kamogawa to take Anderson's right. Kamogawa, despite getting hit by powerful punches, stays standing and never backs down, using his iron will and courage. When their distance closes in, Anderson throws his Chopping Right, which hits Kamogawa's face. Thanks to taking Nekota's punch earlier, he stays standing and notices that when he uses the Chopping Right, Anderson's side is left open. Anderson then hits Kamogawa with another Chopping Right that almost causes Kamogawa to fall until Nekota requested for him not to fall. Anderson admits that Kamogawa is strong and throws another Chopping Right that hits, however, it slips on the blood on Kamogawa's face. Kamogawa then hits Anderson with a left body blow that does a great amount of damage on his ribs and breaks Kamogawa's left fist. Anderson blocks his face, thinking that Kamogawa is about to hit it with his right. However, Kamogawa uses his right to hit Anderson's body, causing him to go down. With both of Kamogawa's fists broken and Anderson unable to get up, the match ends with Kamogawa's victory.
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Kamogawa watching as Nekota and Yuki leaves for the mountains.
Anderson is carried out in a stretcher due to his ribs piercing his internal organs as Miguel holds Kamogawa's hand up in victory. Miguel is surprised how Kamogawa broke his fists even before the match, and thinks that while the Japanese boxing community is underdeveloped, the man who inherits Kamogawa's blood will take boxing to a new level. Later, Nekota and Yuki gets on the train at the train station to leave for the mountains. Before it takes off, Nekota mentions to Yuki that it is her choice if she stays with him or not. Yuki walks out of the train to talk to Kamogawa, who expresses that he will devote his life to fighting. He then reminds her of what she said before about how flowers wither and leaves seeds, that will grow up in the future, claiming that he will sow the seeds and teach others what he and Nekota learned and report back to her when the one who inherits his fist takes the world championship. As the train leaves, Nekota screams out to Kamogawa, wishing to settle the score with him one day.