Chapter Summaries

Shinnosuke and Seki Kiriko accompanied Eikichi Onizuka to Kaikyu High for an exchange with its representatives, Takeshi Sagara and Satoshi Katagiri. After Shinnosuke provoked the pair with a joke, they threatened him as he hid behind Onizuka.

• Eikichi Onizuka introduced Shinnosuke to Seki Kiriko and explained that Kaikyu had requested an exchange involving two representatives from each school.
• Seki Kiriko identified Takeshi Sagara and Satoshi Katagiri as Kaikyu's likely representatives and warned that they were dangerous.
• Shinnosuke and Seki Kiriko got sick after riding in Eikichi Onizuka's car to Kaikyu High.
• Kaikyu's principal welcomed the visitors and introduced Takeshi Sagara and Satoshi Katagiri as the school's competitors.
• Shinnosuke joked that Takeshi Sagara and Satoshi Katagiri were a couple, prompting them to threaten him before he hid behind Eikichi Onizuka.

Green Vine and Kaikyu began their exchange in a packed gymnasium, where Takeshi Sagara and Satoshi Katagiri fought Shinnosuke and Seki Kiriko with underhanded tactics. The clash left Seki Kiriko and Satoshi Katagiri trading heavy blows while Shinnosuke was struck from behind and lost consciousness.

• Kaikyu's principal led Green Vine to the gymnasium, and Seki Kiriko warned Shinnosuke about Takeshi Sagara before volunteering to fight Satoshi Katagiri.
• As the exchange began, Seki Kiriko engaged Satoshi Katagiri while Takeshi Sagara attacked Shinnosuke with a stool and spiked knuckledusters.
• Shinnosuke dodged Takeshi Sagara's punch and counterattacked, while Eikichi Onizuka was blocked from intervening by Kaikyu students.
• Seki Kiriko and Satoshi Katagiri traded punishing blows, drawing shocked reactions from the spectators.
• Takeshi Sagara attacked Shinnosuke from behind with an iron rod, and Shinnosuke's vision went black.

Shinnosuke defeated Takeshi Sagara and Satoshi Katagiri, securing Aofuji High's victory over Kaikyu. Onizuka took the injured Seki Kiriko and Shinnosuke away in his car, while the system announced Shinnosuke had completed a side quest and gained five technique points.

• Shinnosuke endured Takeshi Sagara's spiked-knuckle punch, then beat him unconscious with a series of attacks.
• Satoshi Katagiri and Shinnosuke fought after Seki Kiriko fell, and Shinnosuke defeated Katagiri using a move he had learned from Senpai Sugihara.
• Eikichi Onizuka declared Aofuji High the winner, and Kaikyu's principal left in defeat.
• Onizuka carried Seki Kiriko out and told Shinnosuke they would drive the injured students to a hospital.
• Shinnosuke asked Onizuka to knock him out too, but Onizuka made him stay awake to help navigate around the car's broken side mirror.
• The system announced that Shinnosuke had completed a side quest and received technique +5.

After recovering from his injuries in just three days, Shinnosuke returned to Green Vine and gained strength from a system reward that caused him intense pain. When delinquents asked to follow him, he refused, and Inoue Ryushi encouraged them to become his friends instead.

• Green Vine's higher-ups visited Shinnosuke in the hospital and gave him 20,000 R yen, while Inoue Ryushi resolved to get stronger after hearing about Shinnosuke's exploits.
• Sugihara Kei continued training against dozens of attackers because he did not want to lose again.
• After three days, Shinnosuke's examination showed he had recovered remarkably quickly, and he left the hospital.
• Back at Green Vine, Shinnosuke received a system reward of Strength +2 and endured severe pain as his muscles tore and repaired.
• Horii Naruya and Go asked Shinnosuke to let them follow him, but he refused and sent them away.
• Go and Kutsui Naruya told Inoue Ryushi that Shinnosuke had refused them, and Inoue suggested they become his friends instead.

Shinnosuke and Inoue Ryushi visited Ryozanpaku to see Kenichi, where they met the dojo master and Miu Furinji. After Ryushi reacted jealously to learning Kenichi lived with Miu, Kenichi offered to introduce them to his teachers.

• Shinnosuke dragged a reluctant Inoue Ryushi to Ryozanpaku using the business card Mr. Sakaki had given him.
• Shinnosuke forced open Ryozanpaku’s enormous doors, and the blond, muscular dojo master welcomed him and Ryushi inside.
• The dojo master called for Kenichi, who stopped training and came to greet Shinnosuke and Ryushi.
• Ryushi explained that he and Shinnosuke had been recovering from an incident, and Shinnosuke said he had felt well after three days but was kept in the hospital.
• Miu Furinji brought tea and introduced herself, prompting Ryushi to accuse Kenichi of hiding that he lived with a cute girl.
• Violent impacts sounded from the backyard, and Kenichi said it was a good time to introduce them to his teachers.

Kenichi showed Shinnosuke and Inoue Ryushi around the dojo, where they met several of his formidable masters and witnessed their unusual habits and skills. After Sakaki Shio’s lesson about controlling power left Shinnosuke thinking about his own instincts, Kōetsuji Akisame approached and squeezed his muscles.

• Kenichi introduced Apachai Hopachai, whose excitement led him to smash nearby buildings, and Ma Kensei, who drew the visitors into a discussion of his perverted interests.
• Shinnosuke, Inoue Ryushi, and Kenichi accidentally saw Kōsaka Shigure bathing, narrowly dodged her thrown weapons, and watched her disappear after recognizing Kenichi.
• Inoue Ryushi angrily put Kenichi in a headlock over the dojo’s beautiful female master, and Shinnosuke stopped him from taking it further.
• Sakaki Shio invited Shinnosuke to punch thick bamboo, demonstrated how to concentrate and spread power at the moment of impact, and told the young men they lacked control over their strength.
• Kōetsuji Akisame recognized Shinnosuke, strode over, and squeezed his muscles.

After meeting the masters at Ryozanpaku, Shinnosuke tried to apply Sakaki Shio’s advice and injured his wrist, then struggled to figure out how to finish his mission to conquer Aofuji High. Inoue Ryushi told him that student council president Shinomiya Kai ruled the third year and stood in his way.

• Kōetsuji Akisame praised Shinnosuke’s strength and resolved to intensify Kenichi’s training.
• Shinnosuke tried concentrating his strength into one punch against a tree, sprained his wrist, and went to the hospital.
• Inoue Ryushi noticed Shinnosuke’s cast and chased him through an unusually exhausting morning run.
• Shinnosuke asked Inoue which strong delinquents remained at Aofuji High, and Inoue identified Shinomiya Kai as the third-year leader and main obstacle to conquering the school.

After Go and Horii Naruya were beaten by yakuza, Inoue Ryushi tracked down their assailants and led his group to the gang’s hideout. There, he found the scarred leader and more than a dozen armed men, then tried to retreat.

• Inoue Ryushi warned that Shinomiya Kai might challenge Shinnosuke because his arrival disrupted the school’s balance.
• Go and Horii Naruya told Inoue Ryushi that yakuza had beaten them, and they described their leader as a man in a red plaid shirt with a cross-shaped scar.
• Inoue Ryushi led his group in search of the attackers, and Taro found a convenience store clerk who had seen a suspicious man.
• The group caught one of the punks, who revealed the gang’s hideout before Inoue Ryushi knocked him unconscious and took his money.
• Inoue Ryushi and the others entered an abandoned warehouse, saw the scarred leader and more than a dozen tattooed men with bags of white powder, and tried to leave.

Inoue Ryushi, Go, and Horii Naruya were cornered by Scarface’s gang after witnessing their secret and were beaten until they could no longer fight. As the thugs approached with blades, a sudden arrival knocked one of them down.

• Scarface’s gang trapped Inoue Ryushi, Go, Horii Naruya, and their companions inside the warehouse.
• Inoue Ryushi, Go, and Horii fought the thugs but were overwhelmed by their numbers and beaten down.
• Scarface ordered his underlings to kill them because they had seen his secret, and Inoue Ryushi realized it involved white powder that might be drugs.
• As a thug approached Inoue Ryushi with a blade, someone struck the thug down from behind and called out that the protagonist had made his entrance last.

Shinnosuke rescued Inoue Ryushi and his companions by defeating Scarface and his gang, then helped them recover ten kilograms of drugs. The group decided to report the gang anonymously to protect their families from the powerful force behind the drug operation.

• Shinnosuke arrived and mocked Inoue Ryushi and Scarface before introducing himself as Nohara Goemon.
• Shinnosuke defeated the gang’s men, then knocked Scarface unconscious with a single punch.
• Shinnosuke tied up the gang while Inoue Ryushi and the others recovered ten kilograms of drugs.
• Inoue Ryushi suggested killing the gang, but the group decided to turn them over to the police instead.
• Shinnosuke urged them to report the gang anonymously, warning that publicity could expose their families to danger.

After learning that police were investigating the dock fight for fingerprints and DNA, Shinnosuke gathered Inoue Ryushi, Go, and Horii to decide how to protect themselves and their families. He left them resolved to search for clues, while noting that eight days remained until his mission deadline.

• A news report revealed that police had found the gangsters beaten and tied up at the dock and were investigating evidence, including blood and fingerprints.
• Shinnosuke told Inoue Ryushi, Go, and Horii that they had to wait and gamble that the gangsters had no police connections.
• Go asked what they would do if the gangsters had someone inside the police, and Shinnosuke said they would strike first.
• Shinnosuke ordered them to send their people to search for clues, then scolded them for regretting their actions instead of finding a way to make amends.
• Inoue Ryushi, Go, and Horii watched Shinnosuke leave and bowed toward the rooftop door.
• Shinnosuke checked his system panel and saw that eight days remained until the mission deadline.

Shinnosuke searched the third-year classrooms for Shinomiya Kai, then used the school PA to challenge him to a fight in the schoolyard. As the crowd gathered, a furious group of third-years came after Shinnosuke, who spat at them.

• Shinnosuke entered several third-year classrooms looking for Shinomiya Kai, and fought off the students who attacked him.
• Shinnosuke used the classroom speaker to ask Shinomiya Kai to meet him in the schoolyard for a challenge.
• Eikichi Onizuka heard the announcement and worried that Shinnosuke was being reckless.
• Kinoshita Hideyoshi, Seki Kiriko, Sugihara Kei, and Inoue Ryushi reacted to Shinnosuke's challenge, while Shinomiya Kai watched from a sofa.
• Shinnosuke told the schoolyard onlookers to leave, then faced a crowd of angry third-years who demanded to know which one of them was Shinnosuke Nohara.
• Shinnosuke stared at the approaching crowd and spat.

Shinnosuke Nohara confronted Shinomiya Kai, who tried to recruit him by boasting about his father’s position in the Kyokusei Association. They fought, and after Kai slammed Shinnosuke to the ground, Shinnosuke retaliated with a powerful punch that sent Kai tumbling across the ground.

• Shinnosuke Nohara’s taunt angered the third-years, who parted to let Shinomiya Kai approach him.
• Shinomiya Kai recognized Shinnosuke and offered him a place in his inner circle, revealing that his father chaired the Kyokusei Association.
• Shinnosuke rejected Kai’s offer, and the two began trading punches and kicks.
• Kai caught Shinnosuke and slammed him headfirst into the ground, leaving him dazed and bleeding.
• Shinnosuke charged back, endured Kai’s kick, then grabbed Kai by the ankle and struck him in the face, sending him rolling across the ground.

Shinnosuke and Shinomiya Kai continued their brutal fight while a crime boss named Tsukikawa raged over lost drugs and demanded answers from his subordinate. After taking a soda break to drain blood from his swollen eyelid, Shinnosuke returned to face Shinomiya Kai for another round.

• Shinomiya Kai flew into a rage after Shinnosuke suggested he seek psychiatric help, then attacked him with a powerful series of blows.
• In Chiba, Boss Tsukikawa smashed up his office over losing drugs worth two hundred million yen and threatened his battered subordinate until he found out what had happened.
• Shinnosuke and Shinomiya Kai traded savage punches until Shinomiya Kai grabbed Shinnosuke's hand and kicked him in the chin, sending him crashing to the ground.
• Shinnosuke got back up to the crowd's cheers, then walked over to a spectator and drank his soda.
• Shinnosuke used the soda can's pull tab to slash his swollen eyelid and drain the pooled blood before telling Shinomiya Kai the next round was beginning.

Shinnosuke defeated Shinomiya Kai with a German suplex after enduring Kai’s attacks and fighting through his injuries. As Kai came to, he accepted the loss and began to believe Shinnosuke might defeat the powerful man he feared.

• Shinomiya Kai charged at Shinnosuke, but Shinnosuke caught his fist and counterattacked despite his impaired vision.
• Shinomiya Kai struck Shinnosuke in the abdomen, but Shinnosuke recovered and charged again with a powerful punch that cracked Kai’s arm.
• Shinnosuke hooked Kai’s foot, punched his lower back, and used a German suplex to slam him onto the back of his head.
• While unconscious, Shinomiya Kai recalled being defeated by Takiya Genji, rebuilding his confidence at Aofuji High, and fearing another powerful fighter at Suzuran.
• Shinomiya Kai woke, acknowledged his defeat, and smiled at Shinnosuke as he wondered whether Shinnosuke could defeat the man he feared.

After defeating Shinomiya Kai, Shinnosuke received a major physique boost and a single-use damage-immunity bandage, then accepted the attention of his new followers while asking Kai to investigate the yakuza. He left Inoue Ryushi, Go, and Horii trusting that Kai would help determine whether the Kyokusei Association was behind their troubles.

• Shinnosuke's mission to dominate Aofuji High was completed, granting him ten physique points and a damage-immunity bandage, and his injuries stopped hurting.
• Shinnosuke helped Shinomiya Kai to his feet and asked him for a favor; Kai agreed to help if he could, then angrily insisted he was not beaten for good.
• The third-years mourned Shinomiya Kai's defeat until he told them he was still alive, while Shinnosuke slipped away from students calling him their boss.
• Kinoshita Hideyoshi brought Shinnosuke a hamburger steak bento, and Shinnosuke ate while Hideyoshi left him to collect the lunchbox later.
• Shinnosuke warned Inoue Ryushi, Go, and Horii to stay out of the yakuza matter and said he would ask Shinomiya Kai to investigate whether the Kyokusei Association was involved.
• Horii doubted Shinomiya Kai would help, but Shinnosuke insisted that he would, and the three left trusting him.

Shinnosuke asked Shinomiya Kai to investigate the drug traffickers behind the recent police seizure, and Kai reluctantly agreed to accompany him. On the way out, Shinnosuke watched a blond delinquent knock a man unconscious and warn him never to return to Chiba.

• Shinnosuke visited Shinomiya Kai in the hospital and asked him to investigate the people behind the drug shipment and where they were.
• Shinomiya Kai refused at first, warning that the traffickers likely had guns, but agreed after Shinnosuke threatened to bring him a bag of poop every day.
• Shinomiya Kai insisted on going along when the time came, and Shinnosuke left the hospital after questioning whether Kai was well enough.
• Shinnosuke found a crowd by the riverside and watched a blond delinquent disarm a man with a broken bottle and knock him unconscious with an uppercut.
• The blond delinquent told the unconscious man never to come to Chiba again, then left with his sea urchin-haired companion.

Shinnosuke ran into Nanako Ohara, the woman he had adored as a child, while following Go and was overwhelmed by their reunion. He brought Nanako to the Nohara home, where Misae and Hima-chan welcomed her and Misae teased them about Nanako having once been Shinnosuke’s bride.

• Shinnosuke followed Go and Nanako Ohara through the shopping street until Seki Kiriko called out and exposed him.
• Shinnosuke recognized Nanako, and they greeted each other emotionally after ten years apart.
• Shinnosuke and Nanako walked by the river, learned that Go was her nephew, and spoke awkwardly about their lives and relationships.
• Shinnosuke invited Nanako to the Nohara home, where Misae welcomed her warmly.
• Misae introduced Nanako to Hima-chan as Shinnosuke’s childhood bride, leaving Nanako and Shinnosuke embarrassed.

Hiroshi Nohara welcomed Nanako and saw her off with Shinnosuke, who revealed that his grueling workouts were meant to help him survive. The next morning, classmates confronted Shinnosuke about his connection to Go’s beautiful aunt, Miss Ohara, and Go said he would accept Shinnosuke marrying her.

• Hiroshi Nohara came home, recognized Nanako, and drew Misae’s reprimand when he looked at her lecherously.
• Shinnosuke walked Nanako home while dragging tires for his workout, and told her he trained to stay alive.
• Shinnosuke slapped himself and continued his workout after walking Nanako home.
• At school, Inoue Ryushi confronted Shinnosuke about how he knew Go’s aunt, and Shinnosuke explained their history.
• Go said he would not object if Shinnosuke married Miss Ohara, making Inoue Ryushi jealous.

Sugihara Kei challenged Shinnosuke to a fight under Shibukawa Bridge, where the two exchanged punishing techniques. Shinnosuke adapted to Sugihara Kei’s moves, defeated him, and left him wondering how Inoue Ryushi tolerated his arrogance.

• Sugihara Kei told Shinnosuke to meet him under Shibukawa Bridge, and Shinnosuke accepted.
• Sugihara Kei attacked first, landing kicks and striking Shinnosuke hard enough to make him bleed.
• Sugihara Kei dislocated Shinnosuke’s right arm, but Shinnosuke painfully reset it and continued fighting.
• Sugihara Kei tried to dislocate Shinnosuke’s arm again, but Shinnosuke resisted and knocked him down with a punch.
• Sugihara Kei admitted defeat, and Shinnosuke claimed his personal charm was why Inoue Ryushi put up with him.