Ippo, a teenage boy with a pure heart and steely determination, discovers a passion for boxing after veteran fighter Takamura saves him from bullies.
Ippo gets invited to see a movie with his new classmates but can't go since he has to work at his mother’s fishing store.
Ippo's goal is to catch 10 leaves, with only a week to do so. While balancing school and work, Ippo is also practicing his jabs.
At first, it seems that Ippo could not keep up with Miyata. He keeps taking hit after hit and gets knocked down twice.
Ippo finally begins his training in the gym. First, Kamogawa himself, helps Ippo to focus on his jabs and the one-two technique.
Ippo begins training with Coach Kamogawa for about in order to prepare for a rematch. During that time, he begins working on more techniques.
A representative from a boxing magazine comes to Kamogawa's Gym on the same day Ippo and Miyata have their rematch.
After a powerful knockout from Miyata, Ippo insists on standing up again and completing the match no matter what.
With Miyata nowhere to be found, Ippo seems distracted in his training, so Kamogawa sends him to train with Takamura.
Ippo finally applies to get his featherweight boxing license. During the exam, he meets Ryo Mashiba and finally gains his license.
After determining Ippo's opponent, Ippo and Oda prepare for their match
The awaited moment has come, And Ippo's first official match against the boxer Oda has begun.
The news of Ippo's boxing spreads in the school, which makes the thugs secretly admire him and insist on attending his next match.
The Rookie Championship is about to begin. Ippo's first opponent is an American soldier, Jason Ozma. To prepare Ippo trains with Takamura.
Ippo begins his first tournament match against Jason.
Ippo continues his tactic of exchanging punches, however, he finds himself struggling to land them as the fight nears its end.
After completing his fight, ippo decides to watch Miyata's match, meanwhile his opponent for his next match is decided.
Ippo and the others head to the beach to relax before they start their training. Ippo realizes he must practice his foot-work ahead of his next match.
After meeting Kobashi, ippo realises he must work hard to beat him, Ippo and Kobashi start their second match of the tournament.
As the fight between Kobashi and Ippo nears its end, Ippo looks for an opportunity to KO, while Kobashi switches up his tactics
Ippo spectates Hayami's 3rd match to see what he's up against. He trains vigorously for his semifinal match.
Ippo arrives at his semifinal match against Hayami with bruises on his face, round 1 commences.
Ippo and Hayami continue to exchange blows as their battle nears its end. Hayami realises he shouldn't underestimate Ippo.
Miyata begins his semi-final match against Mashiba as Ippo and the others watch.
As the battle continues, Miyata discovers a pain in his foot that limits his abilities. He struggles through the match as it reaches its climax.
Ippo and Mashiba both train for their match. Meanwhile, Mashiba's motive and reasoning for boxing are revealed.
After a period of immensely focused training, Ippo steps into the ring for his final match for the rookie championship.
As Ippo and Mashiba continue their fight, they both develop weaknesses, however both fighters give their best to try and win under harsh circumstances.
The Eastern Japan Rookie tournament finally comes to an end with Ippo’s victory. He decides to take a break from boxing due to his right hand.
Takeshi Sendo, the winner of Western Japan rookie tournament, tries to convince Ippo to take part in the All Japan tournament.
Ippo wants to fight Sendo so he goes to an orthopedic doctor to get his fist looked at. Ippo then starts an intense training regime.
A recap of the boxing matches that have taken place thus far.
Ippo is still having trouble with his right fist but his match with Sendo begins.
Ippo tries a different fighting stance making his match with Sendo only get more intense.
Ippo and Sendo keep fighting, the crowd starts cheering Sendo on and the match reaches its climax.
Ippo graduates and takes photos with friends. New people join the gym and are put to the test by running with Takemura, Ippo, Aoki, and Kimura.
Kimura, Aoki, and Takemura each fight their match. Ippo spars with the featherweight champion, Date.
Dante uses his secret weapon on Ippo. The fact that Dante used it on Ippo made Okita challenge him to a real match.
Okita uses moves that makes him unpredictable for Ippo. Okita also uses a fighting style like Dante and uses a corkscrew.
Miyata's in Thailand and he gets a tough opponent with a great record, Jimmy Sisfa.
Miyata's fight with Jimmy Sisfa begins. Miyata starts off bad and tries a counter punch.
Aoki, Kimura, and Ippo all try going A-class. Yamada has his first fight. All the guys want to go to training camp.
Ippo's mother collapses from overworking so Ippo has to look after the family business. Ippo thinks about quitting boxing to help her.
Ippo Prepares for his match against Saeki, the speed star, by trying to improve his movements and become faster.
Ippo's match with Saeki has begun, but he is so fast that Ippo can't land a hit on him. Ippo Is left with a blind spot after getting his eye swollen.
After all, the guys are done with their matches they go to karaoke. Takemura lets everyone know Yamada is leaving so they give him a send-off.
Aoki and Kimura fight their matches. Kamogawa wants Ippo to train his legs to get flexible muscles so that he can deliver a more powerful punch.
Ippo meets Volg after he gets lost. Volg tells Ippo that he boxes so he can get money for his mother.
The match with Ippo and Volg begins and the two boxers seem to get the edge over one another quite a bit.
The fight between Ippo and Volg carries on. Ippo takes a lot of hits and gets knocked down a couple times.
After many rounds, Ippo and Volg are both exhausted. After the match is finished Volg visits Ippo in the hospital and meets his mother.
Ippo wakes up after a couple days at the hospital. He meets Mashiba's sister, Aoki. Kimura, Takemura, and Ippo go on a group date.
A recap of some of Ippo's fights told by Date.
Date's past is revealed. Takemura gets ready for his match.
Takemura has real trouble at the beginning of his match. Ippo finds out that Mashiba won the championship and celebrates with him and his sister.
Ippo's title match with Date has begun, Date is surprised by how much better Ippo is since the last time he sparred with him.
Ippo punches Date in the face quite a bit but Date isn't taking the full impact of the punch because he's twists his neck.
Both Ippo and Date are beaten up bad. The match reaches the climax.
Ippo finds out that Sendo and Volg will fight for the title. Kamogawa asks Ippo not to go to the gym for three months because of all the damage.
Ippo watches his match with Date. He goes to watch the title match with Volg and Sendo, where he runs into Miyata.
Volg and Sendo face off with the crowd cheering for Sendo, in the end, the match comes down to a decision by the judges.
Aoki, Kimura, and Ippo will all be making their comeback match with Ippo being the main event.
Aoki, Kimura, and Ippo have their comeback matches. Ippo tries a new move, the Dempsey Roll.
Aoki, Takemura, and Ippo visit Kimura because he has a high fever. Aoki's and Kimura's life as delinquents is shown.
A look at how Aoki and Kimura became boxers and joined the Kamogawa gym, also shown is their debut matches.
Sendo beats Saeki the speed star comfortably. Sendo wants a fight with Ippo. All the guys from the gym go to training camp in the mountains.
The guys learn that killer intent can make it seem like you’re throwing a punch. Kamogawa and Nekota's history with one another is told.
Ippo spars with Shigeta whose ranked fourth among Japanese featherweights and who also uses southpaw.
Aoki, Kimura, and Takemura all fight their fights. Takemura makes a grand entrance wearing a bear pelt and fights his match only using his left hand.
Sendo begins his title defense match with Shigeta the southpaw user. Sendo fights Shigeta but gets more angry with him as the fight goes on.
Kumi lets Ippo know that she was the one who wrote idiot outside the gym. Sendo's grandma tells Iimura Mari about Sendo's childhood.
Ippo reads Mari's article and invites Nekota to his fight. Sendo and Ippo begin their rematch with Ippo getting a very early knockdown on Sendo.
Sendo and Ippo's fight begins guns blazing with the two landing blow for blow. Ippo finds out that Sendo has the advantage of having a bigger frame.
Ippo starts the third round by charging at Sendo but then hesitates which leads to Sendo beating Ippo all through the third round.
A flashback shows how Sendo joined his gym. Ippo gets knocked down two times but when he gets up the fifth round gets more brutal.
The match between Ippo and Sendo finally reaches its conclusion after seven ruthless rounds.
The story about how Kamogawa got Takemura to join his gym and how he trained him. Takemura has his debut match.
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