Chapter Summaries

Kenichi Amamiya worked with Deidara to develop cheap explosive weapons, but their first Cluster Bomb proved weak and compressing its Chakra caused an accidental blast. He began investigating why Deidara’s Explosion Release worked best with clay and how to improve it.

• Deidara tested a Fragmentation Grenade made with his explosive clay, and Kenichi Amamiya recognized that Deidara could help reduce the cost of explosives.
• Kenichi Amamiya asked Deidara to make a Cluster Bomb, and Deidara produced one containing more than five thousand small bombs, but its blast was too weak.
• Kenichi Amamiya suggested compressing the Chakra inside the bombs, and Deidara’s attempt triggered an explosion that left them unharmed.
• Deidara explained that he had to chew the clay to shape it efficiently and that Chakra directed into it outside his body tended to detonate immediately.
• Kenichi Amamiya asked whether Deidara’s Explosion Release required clay, and Deidara said his experiments with other materials had not worked as well.

Kenichi Amamiya tested Deidara’s Explosion Release and calculated the Chakra output needed to make a Cluster Bomb. Deidara finished a clay prototype, and Kenichi asked whether he could make it fly so they could test it.

• Kenichi Amamiya studied Deidara’s unstable Explosion Release Chakra and taught him to gather it into a ball without clay.
• Kenichi compressed Deidara’s Chakra and tested how its quantity affected the blast, then spent a week calculating the relationship between Chakra output and explosive power.
• Kenichi determined that output equivalent to fifty-three grenades provided an efficient explosive effect and explained the calculations to Deidara.
• Deidara recorded Kenichi’s advice in a notebook and spent a day and a half making a clay Cluster Bomb with the calculated Chakra output.
• Kenichi asked Deidara whether he had made flying Clay Bombs, which would let them test the Cluster Bomb without needing an aircraft.

Kenichi Amamiya recruited Deidara to test a weapon and accepted a mission to destroy Hoshigakure in the Land of Bears. While they traveled by airship, Kenichi asked Deidara why he had left Iwagakure, and Deidara said the village could no longer tolerate him.

• Kenichi Amamiya contacted Nagato and accepted the mission to investigate Hoshigakure, destroy it, and kill the Third Hoshikage, while protecting the Daimyo of the Land of Bears.
• Kenichi summoned his airship and took Deidara aboard to travel to the Land of Bears and test the Cluster Bomb.
• Deidara asked whether he could make a clay airship, and Kenichi stopped him from trying it inside the airship.
• Kenichi asked Deidara why he had left Iwagakure, and Deidara said the village could no longer tolerate him.

Kenichi Amamiya comforted Deidara about being ostracized in Iwagakure and explained how his Explosion Release and the Third Tsuchikage’s treatment had shaped him. He told Deidara about Naruto’s even harsher childhood, then left Deidara questioning what counted as normal as their airship continued toward Hoshigakure.

• Kenichi Amamiya told Deidara that his Explosion Release was a gift and that his Kekkei Genkai was not his fault.
• Deidara described being shunned by villagers and Comrades after awakening Explosion Release, and said he hated them.
• Kenichi Amamiya mocked the Tsuchikage’s job and told Deidara about Naruto’s lonely, impoverished childhood in Konoha.
• Deidara doubted Naruto’s story, and Kenichi Amamiya promised to take him to meet Naruto someday.
• Kenichi Amamiya noticed Deidara often ended his sentences with “mm” and encouraged him to say no when he needed to.

Kenichi Amamiya and Deidara traveled to the Land of Bears to negotiate with its Daimyo about destroying Hoshigakure. After bounty hunters ambushed them outside a town, Kenichi fought back with lightning and a new necromantic technique, leaving one attacker alive and taunting him.

• Kenichi Amamiya reached the Land of Bears with Deidara and planned to meet its Daimyo to negotiate payment for attacking Hoshigakure.
• Kenichi Amamiya reminded Deidara to use their Akatsuki codenames, and Deidara identified his ring as Vermilion.
• Kakuzu told Orochimaru that Konoha had placed a forty-million-ryo bounty on Kenichi Amamiya and that Kumogakure planned to raise it.
• Kenichi Amamiya and Deidara noticed they were being followed through a town and left for the capital, where bounty hunters surrounded them near a cemetery.
• Kenichi Amamiya fought off the attackers with lightning and a skeletal hand technique, killed seven of them, and taunted the last survivor about his friend's upcoming wedding.

Kenichi Amamiya tested a reanimation ninjutsu on a group of Bounty Hunters, then traveled with Deidara to meet the Daimyo of the Land of Bears. The Daimyo hired them to destroy Hoshigakure, but Kenichi demanded a higher price.

• Kenichi Amamiya’s reanimated corpses attacked Naoto Takenaka and reminded him of his dead friends and younger brother, but Naoto escaped their grasp and fled.
• Kenichi Amamiya pursued Naoto with Chidori, defeated him, and ordered Deidara to burn the Bounty Hunters’ bodies.
• Kenichi Amamiya dispelled his reanimation technique and left with Deidara for the capital of the Land of Bears.
• Kenichi Amamiya met the Daimyo of the Land of Bears, who asked him to make Hoshigakure disappear.
• Kenichi Amamiya told the Daimyo that the offered bounty was insufficient and suggested the price depended on how deeply he wanted Hoshigakure eliminated.

Kenichi Amamiya negotiated with the Daimyo of the Land of Bears to destroy Hoshigakure for 120 million ryo, then considered how to carry out the attack with Deidara. As they traveled, he experimented with new ninjutsu and began testing whether Water Release could draw water from living creatures.

• Kenichi Amamiya pressured the Daimyo by pointing out his inability to control Hoshigakure, and the Daimyo agreed to pay 120 million ryo to have the village wiped out.
• Kenichi Amamiya confirmed the Daimyo wanted no survivors and told Deidara they would use Cluster Bombs, with Kenichi Amamiya guiding the bombing from the airship.
• Kenichi Amamiya tried using Yin-nature Chakra with Impure World Reincarnation, but the technique failed to produce any result.
• Kenichi Amamiya asked Deidara how he would attack a shinobi village, and Deidara suggested making the largest bomb possible.
• Kenichi Amamiya theorized that Water Release might draw water from inside living bodies and began testing the idea on a rabbit.

Kenichi Amamiya and Deidara attacked Hoshigakure under cover of night, combining mist and lightning with Deidara’s explosives to devastate the village. As Kenichi explored the ruins, he found a corpse whose bones glowed blue-green.

• Kenichi Amamiya tested a Chakra technique on a rabbit, draining it into a foul-smelling ball, then dismissed the technique as impractical.
• Kenichi Amamiya and Deidara reached Hoshigakure and waited until night before preparing an aerial attack.
• Kenichi Amamiya used the Hiding in Mist Technique and sent lightning through the fog as Deidara dropped a Cluster Bomb over the village.
• The combined attack shattered Hoshigakure, though a strange snake-like creature rose from the ruins and some residents survived.
• Kenichi Amamiya examined a corpse and discovered that its humerus glowed blue-green even away from the firelight.

Kenichi Amamiya investigated the radioactive glow in Hoshigakure and discovered that the village’s meteorite was likely harming its ninjas. After taking the meteorite and capturing Natsuhi Hoshino, he planned to study them and find a way to shield the dangerous object.

• Kenichi Amamiya suspected a glowing femur from Hoshigakure was radioactive and sent a Shadow Clone into the burning village to investigate.
• The Shadow Clone found glowing bones among some corpses and captured the injured survivor Natsuhi Hoshino.
• Kenichi Amamiya used genjutsu to learn that Natsuhi practiced the Mysterious Peacock Method around a secret Star kept in a room.
• Kenichi Amamiya treated Natsuhi’s injuries, discovered signs of cancer in her body, and decided to take her back as a test subject.
• A Shadow Clone retrieved the meteorite, and Kenichi Amamiya concluded it was the source of the radiation and began considering how to shield it.

Kenichi Amamiya sealed the radioactive meteorite and left the ruined Hoshigakure with Deidara and the unconscious Natsuhi Hoshino. While heading to the Land of Bears' capital to collect the Daimyo's payment, he unexpectedly spotted Jiraiya in the nightlife district and fled before Jiraiya could identify him.

• Kenichi Amamiya sealed the meteorite in a scroll and made a gold box to contain it, warning Deidara that radiation could shorten his life and harm his Chakra.
• Kenichi Amamiya and Deidara searched Hoshigakure again, confirmed there were no survivors, and left with Natsuhi Hoshino.
• Deidara worried that Iwagakure was vulnerable, and Kenichi Amamiya reassured him that its mountainous terrain made it difficult to attack.
• Kenichi Amamiya left Natsuhi Hoshino with a Shadow Clone and entered the Land of Bears' capital to retrieve his payment from the Daimyo.
• Kenichi Amamiya recognized Jiraiya in the nightlife district and hurried away with Deidara before Jiraiya could make out their faces.

Kenichi Amamiya and Deidara reported Hoshigakure's destruction to the Daimyo of the Land of Bears and collected their mission payment. The Daimyo then offered them a fortune for Hoshigakure's meteorite, but Kenichi refused.

• Kenichi Amamiya questioned Deidara about the Daimyos' authority before reporting that Hoshigakure had been destroyed, with Natsuhi Hoshino left alive for his research.
• The Daimyo asked Kenichi Amamiya and Deidara to wait overnight so he could verify their report, and they found lodging at an inn where Kenichi encountered Jiraiya.
• Kenichi Amamiya kept Natsuhi Hoshino guarded by a Shadow Clone overnight and collected the mission payment from the Daimyo the next morning.
• The Daimyo offered Kenichi Amamiya several boxes of money for Hoshigakure's meteorite, but Kenichi refused without hesitation.

Kenichi Amamiya refused to surrender the meteorite and took the Daimyo of the Land of Bears’ six hundred million ryo, then split some of the money with Deidara. As they left, Jiraiya caught them and attacked, but Kenichi and Deidara escaped through the mist, leaving the Daimyo under genjutsu.

• Kenichi Amamiya rejected the Daimyo of the Land of Bears’ offer of six hundred million ryo for the meteorite and placed him under genjutsu.
• Kenichi took the money and gave Deidara one hundred million ryo for his contribution to the mission.
• Kenichi and Deidara encountered Jiraiya on the roof, where he questioned them about their organization.
• Jiraiya attacked them with a Flame Bullet, and Kenichi countered with water that filled the area with thick mist.
• Jiraiya collapsed the house and dispersed the mist, but Kenichi and Deidara had escaped, leaving the Daimyo sitting blankly in the courtyard.

Kenichi Amamiya escaped Jiraiya with Deidara and Natsuhi Hoshino, then studied Hoshigakure’s radiation-powered Mysterious Peacock Method and grew interested in its Star. Back in Amegakure, he converted extra mission money into contribution points and asked Nagato to fund his new research, but Nagato refused.

• Kenichi Amamiya explained his retreat to Deidara and advised him to use aerial harassment tactics, leaving Deidara conflicted about his teacher’s ideals.
• Kenichi Amamiya knocked Natsuhi Hoshino unconscious with genjutsu, brought her aboard the airship, and flew with Deidara toward Amegakure.
• Kenichi Amamiya read Hoshigakure’s Mysterious Peacock Method scroll and learned that it used the Star’s radiation to refine Chakra, shape Chakra into attacks, and let its users fly.
• Kenichi Amamiya decided the Star was dangerous but valuable to research, and planned to test it with a Shadow Clone and protective measures.
• Kenichi Amamiya gave Nagato an extra 120 million ryo to convert into contribution points, then requested funding for new research, which Nagato immediately rejected.

Kenichi Amamiya persuaded Nagato to fund higher-yield grain and cotton research, then returned to his base in the Land of Rice Fields with Deidara and Natsuhi Hoshino. He planned to continue his research and check whether his teacher had returned.

• Kenichi Amamiya pressed Nagato for more funding by describing the hardship caused by hunger and winter cold, and Nagato agreed to provide sixty million ryō.
• Kenichi Amamiya said he would save his contribution points for later, and Nagato explained to Konan that he was funding higher-yield seeds and cotton research.
• Konan stood beside Nagato as he looked over Amegakure, and she opened her umbrella when the rain began again.
• Kenichi Amamiya asked Deidara whether he would return with him, and Deidara said he wanted to keep learning from him.
• Kenichi Amamiya took Deidara and Natsuhi Hoshino by airship to his base in the Land of Rice Fields, then brought them to Sasori's laboratory.

Kenichi Amamiya found his Shadow Clones secretly researching Hydrofluoric Acid while tending the nearly ripe rice fields. Their experiments inspired him to develop acid-based and white-phosphorus ninjutsu, though he still needed to test how Chakra affected Hydrofluoric Acid.

• Kenichi Amamiya noted that he would soon meet Konoha to collect experimental supplies and left Natsuhi Hoshino locked in his laboratory cell.
• Kenichi Amamiya inspected the rice fields and discovered that two Shadow Clones were preparing Hydrofluoric Acid without protective gear.
• A Shadow Clone explained that they were experimenting with the acid as a possible basis for new ninjutsu.
• Kenichi Amamiya considered combining Hydrofluoric Acid with the Hiding in Mist Technique and developing a Fire Release: White Phosphorus Flame Bullet.
• Kenichi Amamiya told the Shadow Clones to continue carefully without damaging the crops, and planned to test whether Chakra affected Hydrofluoric Acid.

Kenichi Amamiya tested Natsuhi Hoshino’s Mysterious Peacock Method and confirmed that the Star’s radiation gave practitioners unusual power while damaging their bodies. After returning to his research, he met Root to receive two more Uchiha Clan Ninjas for his experiments.

• Kenichi Amamiya questioned Natsuhi Hoshino about the Star, then had her use the Mysterious Peacock Method so he could record data on its effects.
• Kenichi Amamiya concluded that the Star’s radiation caused serious health risks, while the Mysterious Peacock Method offered ordinary people a dangerous chance to become ninjas.
• Kenichi Amamiya sealed Natsuhi Hoshino again and postponed further research until he had advanced his Sharingan work and prepared radiation safety equipment.
• Kenichi Amamiya continued studying Uchiha genes while Deidara improved the Cluster Bomb under Sasori’s guidance.
• Kenichi Amamiya met a Root ninja near the Land of Fire’s border and received two sealed barrels containing Uchiha Clan Ninjas.

Fugaku Uchiha learned that Third would propose returning the Uchiha Clan to its former grounds, but Third concealed the truth about the two missing squads and planned to eliminate the clan. Meanwhile, Kenichi Amamiya studied an Uchiha’s eye, then implanted the Mangekyō Sharingan and tested its power aboard his airship.

• Third told Fugaku Uchiha that the two Uchiha squads had been killed by Kumogakure ninja and said he would propose returning the clan to its former grounds.
• Fugaku Uchiha left, while Third considered accelerating plans to deal with the Uchiha Clan and read a Root document about a new replacement for Shisui Uchiha.
• Kenichi Amamiya examined an Uchiha’s eye, discovered three unusual nerves, and successfully severed and reconnected the optic nerves before confirming the man could still see.
• Kenichi Amamiya moved his operation to an airship to avoid Black Zetsu’s surveillance and implanted the Mangekyō Sharingan.
• Kenichi Amamiya used the Mangekyō’s power to twist a chair out of existence and found that the technique caused eye pain while consuming little Dōjutsu Power.

Kenichi Amamiya set a trap for Obito in the Kamui Dimension and worried about Black Zetsu’s ability to spy on him undetected. He then read his teacher’s research on telephone technology, only to freeze when his teacher appeared with wet legs.

• Kenichi Amamiya placed Rin Nohara’s Human Puppet beside a Senjutsu-enhanced Thermobaric Bomb in the Kamui Dimension, hoping Obito would approach it and trigger the biometric device.
• Kenichi Amamiya replaced his Mangekyo eye and considered using an infrared thermal imager to detect Black Zetsu, though he could not devise a sure way to test it.
• Kenichi Amamiya went to his teacher’s laboratory and read documents detailing a working wired telephone prototype and unsuccessful experiments with wireless communications.
• Kenichi Amamiya handed the documents back to his teacher, then froze when he noticed the teacher’s wet, fair legs.

Kenichi told Orochimaru about the Star meteorite he had obtained in Hoshigakure and brought it to her laboratory for examination. Orochimaru sensed its harmful effects firsthand and planned to find a safer way to study it.

• Kenichi asked Orochimaru about the phone’s communication range, then told her about his mission in the Land of Bears and his discovery in Hoshigakure.
• Kenichi explained that the Star meteorite let ordinary people train as shinobi but could cripple or kill them, and said he had captured Natsuhi Hoshino, one of Hoshigakure’s strongest fighters.
• Orochimaru asked to examine the meteorite, and she and Kenichi changed into protective laboratory clothing before entering a biological hazard room.
• Kenichi opened the gold box containing Star and explained that gold seemed to slow the abnormal changes in nearby cells.
• Orochimaru touched Star and felt its effects, while Kenichi urged her to use Shadow Clones and maintain proper safety precautions.
• Orochimaru agreed that safety mattered but said she would first find a way to address the danger so they could begin experimenting.

Kenichi Amamiya and Orochimaru studied how Star's radiation affected Hashirama Senju's cells, which appeared to adapt while continuing to grow. After thirteen days of research, Kenichi returned to his rice experiments and discovered a high-yielding variety with an unusual smell.

• Kenichi Amamiya observed that Star's radiation killed test subjects and damaged Hashirama Senju's cells, while the cells' rapid growth kept them proliferating.
• Orochimaru showed Kenichi that Hashirama Senju's cells were pushing dying cells outward, possibly adapting to Star's radiation.
• Kenichi suggested the cells might mutate into intelligent life, and Orochimaru chose to keep replenishing them with Nutrient Solution and monitor their growth.
• After thirteen days, Kenichi left Orochimaru's laboratory and received his Shadow Clone's rice experiment data.
• Kenichi discovered a rice variety yielding twenty percent more than the seed he had given Nagato, but it had a strange smell.
• Kenichi and his Shadow Clone began testing whether the unusual rice could be eaten.