Chapter Summaries

Yubi and Sasori joined Rasa’s patrol in the Land of Wind, where Yubi treated an injured Sunagakure Chunin at their cave outpost. Sasori watched Yubi with quiet interest as the patrol settled in.

• Rasa warned Yubi, Sasori, and two newly graduated Genin about the risks of patrols amid ongoing clashes with Amegakure and the Land of Water.
• Rasa led the team across the Gobi Desert to a gorge, then left them with Chunin Nomura at a cave outpost.
• Nomura reassured the newcomers that their patrol area was behind the front line, while Sasori repaired his puppet components.
• Yubi examined an injured Chunin’s infected wound, identified how the enemy had attacked him, and cleaned and bandaged the injury.
• Yubi gained medical experience from the treatment, and Sasori watched him from the cave entrance.

Yubi joined his squad’s patrol of a canyon near Sunagakure’s borders, where Nomura explained the terrain and the dangers posed by enemy infiltrators. After Shimada failed to return, the squad sent out shinobi to investigate, leaving Yubi and his classmates in the cave as Sasori departed on his own.

• Nomura took Yubi and the other Genin through the canyon, explaining patrol routes, terrain, and the risks of infiltration.
• Nomura assigned Yubi to patrol alongside veteran shinobi because he was a medical ninja.
• The squad returned to the cave after dark and learned Shimada was overdue.
• A Chunin went to search for Shimada, while Nomura left to alert nearby outposts and Endo stayed behind with the Genin.
• Endo taunted Yubi’s classmates about facing a fight, while Sasori packed his puppet parts and left the cave.

Yubi’s patrol team fled their cave after a missing comrade failed to return, but Amegakure ninjas ambushed them in a canyon. Yubi outmaneuvered their attacker and prepared to counterattack after studying his techniques.

• Endo moved the team from their cave and erased their traces after their missing companion failed to return.
• Yubi warned the others about an explosive kunai, but the blast wounded one of the Genin.
• An Amegakure ninja attacked Yubi, who dodged his Clone Technique and cut his cheek with a scalpel.
• The Amegakure ninja used Water Release: Iron Water Bullet and concealed senbon, but Yubi avoided the attack with a clone.
• Yubi announced that he had captured the enemy’s data and created a model, then began his counterattack.

Yubi defeated an Ame ninja with a concealed blade and blood loss, then returned to help Endo fight the remaining attackers. Sasori arrived and killed the three Ame ninja with his puppets, ending the ambush.

• Yubi wounded an Ame ninja with a poisoned-looking blade, but the enemy collapsed after losing blood from the cut.
• Yubi carried his injured teammate to a high ledge, treated him, and saw that Endo was nearly alone against three Ame ninja.
• Yubi returned to help Endo, relying on his knowledge of the enemy and his self-developed Data Taijutsu.
• Sasori's puppets killed the three remaining Ame ninja before Yubi could engage them.
• Sasori told Yubi he had expected things to go smoothly with him present, and Yubi replied that Sasori thought too highly of him.

Yubi and Sasori learned that Amegakure’s advance squads were probing Sunagakure’s border defenses ahead of a likely larger attack. As they waited with an injured Genin, Yubi considered how Sunagakure’s eventual peace with Konoha could deepen Sasori’s resentment and vowed to change the village’s fate by becoming stronger.

• Sasori told Yubi that Amegakure had broken through the front-line squads and was targeting Sunagakure’s personnel along the Land of Rain border.
• Yubi and Sasori took their injured companion to a hidden outpost while Endo left to relay the intelligence to nearby squads.
• Yubi said the injured Genin needed to be sent back to the village, but Sasori doubted he would survive the trip or receive treatment amid the overloaded medical services.
• Yubi warned that Amegakure’s advance troops were likely scouting Sunagakure’s outposts and defenses before a large-scale offensive.
• Yubi reflected that Sunagakure’s future peace with Konoha could worsen Sasori’s resentment and resolved to find a way to change the village’s course.

Yubi and Sasori joined a Sunagakure squad tasked with treating wounded and supporting the fighting after Amegakure ninja infiltrated the canyon. Yubi proved effective as a field medic while Sasori protected the squad, and Yubi saw the battle as a chance to earn experience points.

• Takuma explained that Amegakure forces had breached the frontline and assigned Yubi, Sasori, and other ninja to support several battlefields in the canyon.
• Sasori chose to join Yubi's medical squad instead of heading directly into the fighting.
• Yubi treated wounded Sunagakure ninja with his medical supplies, and Sasori carried them to a nearby outpost using chakra threads.
• Sasori killed the Amegakure ninja the squad encountered and kept the group safe.
• Yubi estimated that one or two hundred Amegakure ninja had infiltrated the canyon and anticipated gaining substantial experience points from the battle.

As Amegakure’s surprise attack escalated into a large battle behind the border, Yubi fought to survive while Sunagakure awaited reinforcements. After defeating three Amegakure ninja, he used his accumulated experience to redeem Medical Ninjutsu.

• Yubi judged a severely wounded Sunagakure Chunin beyond saving and fled with the other medical ninja when Amegakure enemies appeared.
• Yubi stayed behind to protect his companion, then used a scalpel, a precise strike, and the canyon terrain to kill three pursuing Amegakure ninja.
• Yubi returned toward the outpost and realized Sunagakure’s forces behind the border had to hold out until reinforcements arrived.
• Yubi checked his experience gains and chose to redeem Chakra Scalpel and Mystical Palm Technique.

Yubi kept Sunagakure’s wounded alive through a fierce battle with Amegakure, despite two days without rest. When Sasori arrived injured after facing an Amegakure Jonin, Yubi treated him and received a system bonus for healing a canon character.

• Yubi directed the remaining medical ninja and assistants in treating Sunagakure’s battlefield casualties while conserving his chakra.
• A Sunagakure Chunin relayed Takuma’s warning that Yubi should not overexert himself, but Yubi continued treating patients.
• A Sunagakure ninja brought the injured Sasori into the underground chamber and reported that an Amegakure Jonin had been involved.
• Yubi confirmed Sasori was not in mortal danger and treated his injuries.
• The system notified Yubi that he had gained 200 experience points and unlocked a bonus for treating Sasori for the first time.

Yubi treated Sasori’s injuries in the underground stronghold and tried to stop him from returning to the battlefield. After Yubi exposed Sasori’s lingering pain and disarmed his puppet attack, Sasori sat back down, leaving the wounded to wait for reinforcements.

• Sasori woke and remarked that the human body was fragile before asking whether the stronghold was about to fall.
• Yubi said the defenders could hold out for only two more hours and worried they might have to abandon patients if they retreated.
• Sasori prepared to rejoin the fighting, but Yubi blocked him and insisted he rest.
• Sasori attacked Yubi with a snake puppet, which caught Yubi by the neck, but Yubi cut the Chakra Threads with a Chakra Scalpel and escaped.
• Yubi pointed out Sasori’s painful abdominal injury and challenged him to fight in his weakened state, then expressed disappointment in him.
• Sasori turned away from Yubi and sat back down.

Granny Chiyo arrived at the outpost with medical reinforcements, rescuing Yubi, Sasori, and the remaining Sunagakure shinobi from having to retreat under fire. After Chiyo explained that the Third Kazekage was heading to the front to confront Hanzo, an exhausted Yubi collapsed, while Sasori briefly showed a genuine smile.

• A Sunagakure veteran prepared to sacrifice the outpost's remaining fighters so Yubi, Sasori, and the younger shinobi could escape.
• Granny Chiyo arrived with a medical team, and the reinforcements began treating the wounded.
• Chiyo praised Yubi for his battlefield medical work and examined Sasori's injuries.
• Chiyo explained that Hanzo had resumed fighting Sunagakure and that the Third Kazekage had gone to the front to counter him.
• Yubi fainted from exhaustion, and Sasori laughed briefly before returning to his usual expression.
• Chiyo left with her people to head to the battlefield after hearing that Hanzo had also set out.

After Sunagakure gained the upper hand against Amegakure, Yubi and Sasori left their outpost and joined the main force. The Third Kazekage praised them for holding the rear, while Yubi insisted their battle was modest compared with the front line.

• Yubi woke at noon and learned that the Third Kazekage and Granny Chiyo had gained an advantage over Amegakure.
• Yubi discovered that Sasori had gone out at daybreak, then saw him return and resume working on his puppet parts.
• Yubi helped the medical ninja treat wounded shinobi as the outpost supported the front line.
• By evening, Hanzō led Amegakure in retreat, and Yubi and Sasori joined Sunagakure's main force at a temporary camp.
• The Third Kazekage summoned Yubi and Sasori, praised their defense of the rear, and heard Yubi explain that their fighting was minor compared with the front line.

After the Third Kazekage ordered Arai to lead Yubi and Sasori, he questioned Yubi about his medical ninjutsu and offered him access to the village’s scrolls. As Arai escorted them back to the canyon, Yubi decided to keep drawing the leadership’s attention so he could gain influence and eventually change Sunagakure.

• Yubi refused to abandon his unfinished mission, and the Third Kazekage assigned Arai to lead him and Sasori.
• The Third Kazekage questioned Yubi about learning medical ninjutsu, and Yubi claimed he had taught himself during a hospital internship.
• Sasori suspected Yubi was lying but chose not to expose him, while the Third Kazekage offered Yubi access to medical ninjutsu scrolls.
• Arai led Yubi and Sasori back toward the canyon after the meeting.
• Yubi concluded that Sunagakure’s leadership treated people as tools and resolved to build his standing by continuing to attract its attention.

Arai trained Yubi at the outpost and assessed his strengths, recommending possible paths for a medical ninja while learning that Yubi had a clear Taijutsu-based approach of his own. The chapter left them continuing their sparring, with Arai demonstrating how easily he could defeat Yubi and urging him to rely on combat intuition.

• Arai separated Yubi and Sasori from the squad’s operations and focused on guiding Yubi’s training while Sasori was left to himself.
• After sparring with Yubi, Arai explained that a medical ninja could grow stronger through Taijutsu, ninja tools, or puppetry, and suggested Yubi could follow Chiyo’s path.
• Yubi told Arai that he trained his body mainly to increase his chakra reserves and described how his knowledge of the human body helped him read opponents.
• Arai recognized that Yubi had a clear plan for his growth and offered to spar with him to improve his Taijutsu and combat experience.
• Arai taught Yubi to rely on combat intuition and chakra sensing, then appeared behind him and struck the back of his neck before Yubi could detect him.
• Yubi acknowledged Arai’s strength and agreed to continue sparring.

Arai took Yubi and Sasori on an independent raid into the Land of Rain to test their combat skills and encourage competition. After slipping past the border defenses, Arai left the mission to the two boys, and Sasori headed off alone as Yubi began his own hunt.

• Arai trained Yubi through varied battlefield exercises, and Yubi's combat skills improved rapidly over two months.
• Arai decided to raid an Amegakure outpost with Yubi and Sasori, tasking them with killing as many enemy shinobi as possible before escaping.
• Arai warned Yubi and Sasori about the danger of entering the Land of Rain, where experienced Amegakure shinobi guarded the border.
• Arai guided Yubi and Sasori past the border patrols and into the forest, then signaled them to continue without him.
• Sasori set off in a separate direction to compete with Yubi, who prepared to begin his hunt.

Yubi hunted Amegakure shinobi along the Land of Rain border, using stealth and precise ambushes to kill two before realizing the disappearances would raise the outpost’s alarm. Elsewhere, Sasori openly killed two more Amegakure shinobi with his puppets and left their bodies behind.

• Yubi studied Amegakure’s forest traps and chose a section of the border as his hunting ground.
• Yubi silently killed an Amegakure shinobi inspecting an Explosive Tag, hid the body, and erased traces of the attack.
• Yubi ambushed and killed the shinobi who came searching for his missing companion, then concealed the second body.
• Yubi judged that the two disappearances would put the Amegakure outpost on alert and decided to seek other ways to hunt.
• Sasori’s puppets crushed two Amegakure shinobi who tried to signal for help, and he left without hiding the scene.

Yubi, Arai, and Sasori escaped the Land of Rain after a dangerous mission in which Yubi killed ten enemies and Sasori killed twenty-one. Though Arai praised Yubi’s performance, Yubi reacted to the deadly fight with excitement and urged Arai to continue.

• Yubi killed an Amegakure ninja and learned that Sasori had been exposed, prompting him to prepare to withdraw.
• Arai arrived and ordered Yubi to retreat; he and Yubi fought their way through scattered Amegakure pursuers to reach Sasori.
• Arai led Yubi and Sasori out of the Land of Rain, where they met Sunagakure reinforcements.
• Sasori claimed victory after reporting twenty-one kills, while Yubi reported ten, including enemies killed during their escape.
• Arai praised Yubi’s tactical performance, and Yubi laughed about the thrill of the battle before asking Arai to keep going.

Arai agreed to take Yubi and Sasori on more raids against Amegakure, while Yubi used his experience points to acquire an assassination technique based on controlling knives with threads. As the trio traveled to another route, Yubi prepared to test the new ninjutsu and regarded Sasori as his convenient excuse for developing it.

• Yubi urged Arai to continue the dangerous raids, and Arai agreed on the condition that Yubi and Sasori follow his instructions.
• Sasori accepted the chance to repeat the mission and vowed to outperform Yubi by using his methods.
• Arai took Yubi and Sasori to seek another route along the border after Amegakure strengthened its outposts.
• Yubi reviewed his experience points and exchanged 200 Negative Experience Points for Possession Thread and Death Waltz, which the system assimilated into a ninjutsu.
• Yubi took out piano wire and smiled at Sasori, intending to use him as an excuse for developing his own thread-control technique.

Arai led Yubi and Sasori on another mission into the Land of Rain, where both carried out stealthy assassinations. Yubi tested a concealed-wire ninjutsu, which surprised Arai, and the three escaped after Amegakure began searching the area.

• Arai led Yubi and Sasori into the Land of Rain after they rested near the border and contacted Sunagakure ninja.
• Sasori challenged Yubi to outperform him, and the two separated to hunt Amegakure patrols.
• Yubi used piano wire to control a throwing knife, killing two Amegakure ninja and naming the technique Blade Intent Manipulation.
• Arai watched Yubi's new technique and was surprised by its speed, stealth, and resemblance to puppeteer methods.
• Sasori used his puppet to eliminate targets quietly and erase traces of his attacks.
• Amegakure's search intensified as outposts lost contact, but Arai, Yubi, and Sasori escaped after completing two hours of the mission.

Arai’s month of raids with Yubi and Sasori ended with Yubi’s skill and original A-rank ninjutsu impressing him, and the team returned to Sunagakure. In Amegakure, Hanzō reacted to the raids by ordering intelligence about Yubi and Sasori sent to Konoha, with their reputations exaggerated.

• Arai led Yubi and Sasori on nearly ten raids against Amegakure outposts, where Yubi’s battlefield growth and Blade Intent Manipulation impressed Arai.
• Arai reported Yubi’s original A-rank ninjutsu to the Third Kazekage, and Yubi’s border patrol assignment ended with his return to Sunagakure.
• Hanzō heard that the three-man team had raided Amegakure’s outposts repeatedly and killed many of his ninja, then struck down the subordinate who explained their failures.
• Hanzō ordered an Amegakure ninja to send intelligence about Yubi and Sasori to Konoha and exaggerate their reputations as geniuses.

Yubi returned to Sunagakure and saw how the war had drained the village’s people and finances. The Third Kazekage and other leaders summoned him to demonstrate the ninjutsu he had created, leaving them astonished by his claim that the process had been fairly simple.

• Yubi returned to Sunagakure and reflected on the village’s decline as the war continued.
• Yubi turned in his B-rank and A-rank missions and received unusually low pay, showing that Sunagakure was short of money.
• Sasori accepted another mission and left the village instead of going home.
• Arai brought Yubi to the Third Kazekage’s office, where Granny Chiyo, Ebizo, and other leaders had gathered.
• The Third Kazekage asked Yubi to demonstrate his self-created ninjutsu and explain how he had developed it.
• Yubi called the process fairly simple and took out his piano wire, leaving the assembled leaders stunned by his talent.