Chapter Summaries

Shimizu secured a semi-independent role with the Demon Slayer Corps through his uncle Uesugi Sakai and received Scarlet Iron firearms, then continued improving his puppets while serving with the Sand Ninja in the Naruto World. The chapter ended with Fatty rebuilt as a B+ defensive puppet, though its original materials limited how much further it could be strengthened.

• Shimizu met Uesugi Sakai at Shiga Police Headquarters, where his uncle arranged for him to join the Demon Slayer Corps as a special police member with mission exemptions and police-rank advancement.
• Uesugi Sakai explained that the Ubuyashiki Family Head had approved the arrangement because the Wind Pillar believed Shimizu had Pillar potential and Uesugi Yu had donated supplies to the Corps.
• Uesugi Sakai gave Shimizu two Scarlet Iron flintlock pistols and sixteen cartridges for each gun, including a second set intended for Shinazugawa Sanemi.
• In the Naruto World, Shimizu spent New Year at the wartime camp and completed his third puppet after deciding to preserve Fatty's existing strengths rather than rebuild it entirely.
• Shimizu reinforced Fatty with defensive mechanisms and armor, producing a B+ puppet that could protect its puppeteer but remained limited by its original materials.

Shimizu completed Daiwan, an advanced combat puppet that combined Sunagakure techniques with modern engineering and surpassed Fatty in overall capability. After Pakura and Baki inspected it, they asked how it compared in battle and noted Shimizu's ability to control three puppets.

• Shimizu built Daiwan from advanced materials, giving it powerful close-combat and long-range attacks, improved mobility, and a pneumatic system driven by Wind Release.
• Shimizu equipped Daiwan with a camouflage-capable chameleon component called Sand Eagle, along with enhanced launchers, a concealed greatsword, and rocket attacks.
• Pakura admired Daiwan's appearance and asked how its combat ability compared with Fatty's.
• Baki joined Pakura and asked about Shimizu's ability to control three puppets at once.

Shimizu sparred with Kazakami Senran to test Daiwan’s new combat capabilities. Shimizu’s puppets and weapons gave the jonin some trouble, though Kazakami Senran remained difficult to hit and neither pushed the spar to a dangerous conclusion.

• Shimizu said Daiwan had greatly improved his strength and believed he could now fight a jonin.
• Kazakami Senran challenged Shimizu to spar at the west side of the camp, and Shimizu accepted.
• Kazakami Senran opened with a swift sword strike, but Daiwan blocked it as Little Boy and Fatty attacked.
• Kazakami Senran evaded the puppets and countered with Wind Release, while Fatty’s Mechanism Sealing blocked his sword energy and Shimizu fired Senbon and rockets.
• Pakura and Baki watched as Kazakami Senran used Lightning Release to destroy Shimizu’s rockets, while Shimizu struggled to find an opening.

Shimizu demonstrated strength close to Jonin level, and Kazakami Senran planned accelerated training and promotions for his team. The story then shifted to Mount Ken in the Demon Slayer World, where Shimizu met the Wind Breathing trainer Morioka Nen.

• Shimizu ran out of Chakra during his fight with Kazakami Senran, who judged that he could contend with some Jonin for a limited time.
• Kazakami Senran planned to take Shimizu and Pakura on more missions to earn merit and train Baki in Wind Release Nature Transformation.
• Kazakami Senran expected Shimizu, Pakura, and Baki to advance in rank and complete their training in under two years.
• Shimizu arrived at Tateyama Temple on Mount Ken and met Morioka Nen, a former Class A Swordsman who taught Wind Breathing.

Shimizu arrived at Morioka Nen’s temple to learn Wind Breathing and tested his swordsmanship against the retired swordsman. Morioka Nen praised Shimizu’s strength but judged his swordsmanship foundations too weak for advanced techniques, and began advising him on what to improve.

• Morioka Nen introduced Shimizu to apprentice swordsmen Akiba Kama and Sagawa Kinjō, who were practicing Wind Breathing.
• Shimizu chose to start training immediately, and Morioka Nen assessed his current abilities in a bamboo-sword spar.
• Morioka Nen used Wind Breathing’s Fourth Form and Fifth Form, while Shimizu blocked and dodged until his bamboo sword broke.
• Morioka Nen praised Shimizu’s strength and explained that his own age and injured calf limited his fighting ability.
• Morioka Nen decided Shimizu should strengthen his swordsmanship fundamentals before learning more advanced techniques.

After Shimizu’s rise reshaped Gotham’s underworld, Barry Allen and his friends sought a way to restore his Speed Force by rebuilding a Particle Accelerator. They discovered that Shimizu, a wealthy former student of Harrison Wells, might be able to help, but they were unsure whether they could trust him.

• Shimizu’s Hogg United seized territory and recruited members as the Falcone Family declined and Harvey Dent hid with the remnants of the Two-Face Gang.
• Hogg United and the Iceberg Lounge emerged as Gotham’s two leading underworld powers.
• Barry, Cisco Ramon, and Katherine Snow discussed rebuilding a Particle Accelerator to restore Barry’s lost speed, but they lacked the necessary technology and money.
• Katherine found that Shimizu, who had studied under Harrison Wells, might help them build the accelerator.
• Barry and his companions questioned whether Shimizu could be trusted and whether he could obtain the accelerator’s core components.

Barry Allen and Cisco Ramon visited Shimizu in Gotham to recruit him for a major deal, revealing their superhero identities and asking for help rebuilding the particle accelerator. Shimizu learned that Barry had lost his Speed Force to Zoom and hoped a dark matter explosion would restore it.

• Barry Allen and Cisco Ramon traveled to Gotham to approach Shimizu, believing Wells's former students had a claim to his research legacy.
• Shimizu heard that Barry Allen and Cisco Ramon wanted to discuss a deal related to his former teacher and agreed to meet them.
• Barry Allen and Cisco Ramon introduced themselves as the Flash and Vibe, and Cisco demonstrated his powers by shattering Shimizu's ceramic cup.
• Shimizu asked for honey-glazed grilled fish from Coast City as payment for the broken cup.
• Barry Allen explained that Zoom had stolen his Speed Force and that he wanted to rebuild the particle accelerator and detonate dark matter to regain his super speed.

Shimizu agreed to help Barry Allen and Cisco build a particle accelerator in exchange for three favors, then traveled to Central City to claim Dr. Wells's prototype from the university. He arrived with his accountant and met Barry, Cisco, and Katherine, leaving the group on its way to Central City University.

• Barry Allen explained that Dr. Wells had left a particle accelerator prototype at Central City University, which Shimizu could claim as his student.
• Shimizu agreed to help Barry and Cisco build another accelerator in exchange for three favors within their capabilities.
• Two days later, Shimizu arrived at Central City Airport with his accountant and met lecturer Colleen Grama, who welcomed him to Central City University.
• Shimizu introduced Barry Allen, Cisco Ramon, and Katherine Snow as friends and collaborators, and the group drove toward the university.

Shimizu visited Central City University as Dr. Wells’s supposed former student and sought to take possession of Wells’s particle accelerator core. After Professor Muller questioned his qualifications, Shimizu said he would invest in Stellar Labs and continue Wells’s research.

• Professor Muller welcomed Shimizu to Central City University and arranged for him to tour the campus and address students.
• Shimizu delivered a prepared speech written by Barry Allen, then avoided questions and moved on to tour the physics laboratories.
• At the lab, Shimizu recognized the Particle Resonance Radio-Frequency Emitter as the purpose of his visit and learned the university considered it priceless.
• Shimizu offered five million dollars to support the university, but Professor Muller said he would need to prove he could continue the accelerator research before taking the equipment.
• Shimizu introduced Barry and the others, explaining that Barry owned Stellar Labs and that his company would invest in the lab to continue Dr. Wells’s unfinished work.

Shimizu and the team moved Harrison Wells's equipment to Stellar Labs and prepared to recreate the particle accelerator accident that gave Barry his powers. As Cisco drew a storm over the lab and the accelerator began its run, Shimizu and Barry waited to be struck by lightning.

• Shimizu and the others transferred the laboratory equipment to Stellar Labs and obtained the remaining supplies from Central City University.
• Cisco assembled the accelerator overnight, and Joe and Alice arrived with breakfast as the team finished preparations.
• Katherine confirmed the equipment was ready, and Barry and Shimizu took their positions in the accelerator plaza.
• Shimizu joked with Barry about the superpower he wanted while Cisco prepared to channel lightning with the Weather Wand.
• Cisco summoned dark clouds as Katherine started the particle calculations, and the accelerator began spinning particles at high speed.

After the accelerator explosion exposed Shimizu and Barry to dark matter, Barry recovered his Speed Force while Shimizu discovered he had gained wind-related abilities and improved control over his Chakra. Shimizu began exploring his new powers, though he had not yet confirmed whether he had gained a separate lightning ability.

• Katherine activated the accelerator, and its energy reaction knocked Shimizu down and left Barry unconscious as red lightning healed his wounds.
• Shimizu restored his disguise and went with Barry to the medical room, where Katherine found that Barry was readjusting to the Speed Force and Shimizu needed nutrients after dark matter altered his body.
• Shimizu ate energy bars while Barry woke, quickly ate several more, and celebrated his restored speed.
• Barry tested his speed on Cisco's treadmill as Katherine reassured Shimizu that his transformation would take longer to finish.
• Shimizu sensed subtle changes in the wind and formed a miniature tornado without Chakra, then found that his Lightning Release control had also greatly improved.

After returning from a mission, Shimizu spent Destiny Value to synchronize his DC incarnation’s airflow and lightning abilities, then tested his enhanced powers. He began practicing a newly acquired lightning technique, Lightning Strike.

• Shimizu reviewed his improved ninja attributes and decided to synchronize Airflow Manipulation and Lightning Energy Affinity.
• After Baki distributed the mission reward, Shimizu exchanged for supplies and spent 50% of his Destiny Value to synchronize both abilities.
• Shimizu ate a large amount of food to recover from the bodily changes caused by synchronization.
• Shimizu tested Lightning Release: Earth Run and found it was more powerful and easier to perform than before.
• Shimizu took out a scroll for Lightning Release: Lightning Strike and prepared to test the mid-range technique.

Shimizu practiced Lightning Release and Wind Release techniques, using his superpowers to amplify their effects, then successfully learned the Shadow Clone Technique. He realized his chakra control had improved and found that his Body Flicker speed had increased.

• Shimizu studied Kazakami Senran's demonstration and the scroll, then used Lightning Release to shatter a boulder.
• Shimizu guided Wind Release with his wind-manipulating superpower and created a growing tornado with Gale Dance.
• Tejima Jiro and a Sunagakure Patrol Team investigated the commotion, and Shimizu told them he had been practicing ninjutsu.
• Shimizu decided to practice the Shadow Clone Technique and successfully created a clone.
• Shimizu watched his Shadow Clone use Body Flicker and noted that its speed was nearly thirty percent faster than before.

Shimizu considered how Chiyo's Swift Wind Technique might lead to a Wind Release Chakra Mode and decided to begin learning Wind Release Nature Transformation. Kazakami Senran took Shimizu, Pakura, and Baki to train and began explaining the basics of Nature Transformation.

• Shimizu assessed the advanced Swift Wind Technique and realized that his limited sensory ability would prevent him from developing it like Chiyo.
• Shimizu decided to ask Kazakami Senran to teach him Wind Release Nature Transformation.
• The next day, Shimizu told Kazakami Senran he wanted to study Nature Transformation, and Pakura and Baki also explained their reasons for training.
• Kazakami Senran led the three to a riverside training spot and explained Chakra, Nature Transformation, and Shape Transformation.
• Kazakami Senran set out kunai and told Shimizu, Pakura, and Baki that they would begin learning Wind Release by practicing its cutting nature.

Shimizu trained Wind Release Nature Transformation under Kazakami Senran and secretly mastered the leaf-cutting exercise after only a few tries. In the Demon Slayer World, Morioka Nen judged Shimizu’s swordsmanship ready for him to begin learning Wind Breathing.

• Kazakami Senran taught Shimizu, Baki, and Pakura to coat kunai with Wind Attribute Chakra and limit the damage around their targets.
• Shimizu met the kunai exercise’s requirement immediately, then cut a leaf cleanly in half on his first attempt at the next step.
• Kazakami Senran explained the remaining Wind Release training and estimated Shimizu could complete it within two or three months.
• Shimizu followed Kazakami Senran’s advice and cut a leaf cleanly in half, then hid his success so he would not discourage Baki and Pakura.
• At Tateyama Temple, Shimizu lasted thirty-seven moves against Morioka Nen before losing his bamboo sword.
• Morioka Nen said Shimizu had reached an introductory level of swordsmanship and could begin learning Wind Breathing.

Morioka Nen taught Shimizu Wind Breathing and demonstrated its first four forms. After learning the techniques through shared memories from his DC World incarnation, Shimizu performed them with astonishing skill, leaving Morioka Nen convinced he could become a Pillar.

• Morioka Nen explained the origins and principles of Breathing Styles and gave Shimizu a booklet on Wind Breathing.
• Morioka Nen demonstrated the first four Wind Breathing forms, then stopped because of his injured leg.
• Shimizu tried the forms but initially produced only weak gusts and struggled to perform them correctly.
• Shimizu's DC World incarnation mastered the forms after receiving shared memories, and those memories helped Shimizu rapidly improve.
• Shimizu executed all four forms with powerful wind blades, astonishing Morioka Nen, who understood why the Wind Pillar saw Pillar potential in him.

After learning Wind Breathing from Morioka Nen, Shimizu left Tateyama Temple to prepare for the Mt. Fujikasane selection and search for a chance to learn Sun Breathing. He headed toward Koga City to obtain materials for making puppets and planned to use his family’s influence to locate the Kamado family.

• Shimizu mastered the forms of Wind Breathing in three days and developed his Total Concentration Breathing over the following month, reaching strength comparable to seventy percent of Morioka Nen at his peak.
• Shimizu thanked Morioka Nen and gave him a large check to help repair Tateyama Temple before departing.
• Shimizu asked Morioka Nen where the Water Pillar operated and learned that Urokodaki Sakonji had not taken a disciple in six years.
• Shimizu inferred that Kamado Tanjiro’s family had not yet suffered its tragedy and decided to search the Water Pillar’s territory for the family’s remote mountain home.
• Shimizu set out for Koga City to collect materials that his Third Uncle, Uesugi Yu, had purchased for making puppets.

Shimizu arranged for Uesugi Yu to help find the Kamado family and their inherited Hinokami Kagura before leaving to study Thunder Breathing. In the Naruto World, Chiyo added him to Sunagakure’s Special Jonin promotion list after revealing that his part in exposing Konoha spy Reina had earned him credit for an S-rank mission.

• Shimizu asked Uesugi Yu to investigate the Kamado family in the area where he believed the original Breathing Style had been preserved.
• Uesugi Yu agreed to check police household records and send people to investigate if needed.
• Shimizu had mastered Wind Release Nature Transformation in the Naruto World and could control three puppets, while Pakura and Baki were still training.
• Chiyo told Shimizu she would submit his name for promotion to Special Jonin, citing his mission record and two S-rank credits.
• Chiyo explained that Shimizu and Sasori had exposed Reina as a Konoha spy and uncovered a plot to use Hatake Sakumo to assassinate the Third Kazekage.

After Hatake Sakumo was badly wounded and Konoha began preparing to redeploy its forces, Shimizu analyzed Konoha’s likely response with Chiyo. Chiyo assigned Shimizu’s squad a mission to strike Konoha supply bases, and the chapter ended as they awaited two additional jonin.

• Hatake Sakumo escaped the Third Kazekage’s trap, but nearly eighty percent of his companions died and he was severely injured.
• Shimizu told Chiyo that Konoha would likely send Orochimaru to the western front, and Chiyo revealed Konoha was preparing for a major battle before transferring him.
• Chiyo explained that intelligence from Reina and a captured Sarutobi Clan jonin had helped Sunagakure identify four Konoha storage bases near the border.
• Chiyo said Shimizu’s jonin-level squad would attack the bases alongside two jonin of Kazakami Senran’s caliber.
• The next day, Shimizu and two squadmates waited outside the Sunagakure camp for the two jonin to arrive.

Shimizu joined Ishido, Kurokawa, and Baki on a secret mission to destroy Konoha’s supply depot near the Land of Fire border. After receiving intelligence in Kagero City, he spotted Tsunade gambling and left without approaching her, then headed to the team’s rendezvous point.

• Ishido and Kurokawa reunited with Shimizu and Baki, and Ishido briefed the group on their S-rank mission to destroy Konoha’s logistics depots.
• Kurokawa ordered the team to travel in ordinary disguises as a minor noble family and reach the Land of Fire border within three days.
• Shimizu entered a casino in Kagero City and received a note from a Sunagakure operative reporting that fighting had begun and locating a Konoha supply depot behind a tavern.
• Shimizu spotted Tsunade losing heavily at a gambling table but avoided approaching her to protect his cover.
• Shimizu made sure he was not followed and entered the inn serving as the team’s rendezvous point.