Chapter Summaries

After Barry returned from the Speed Force with his mind overwhelmed, Shimizu and Cisco planned to channel Speed Force energy into Shimizu’s armor using an Nth Metal dagger. Barry then raced off after hearing Nora’s name, while Shimizu and Katherine began treating Mr. Freeze’s awakened wife.

• Alice returned to Stellar Labs and found Barry cognitively impaired after his time in the Speed Force, while Katherine explained that his mind was processing information far too quickly.
• Shimizu discovered that his Nth Metal dagger had absorbed Speed Force energy, and Cisco proposed releasing it into Shimizu’s armor with a vibration-based method.
• Mr. Freeze reported that Nora’s thawing was nearly complete, and Barry raced away after hearing her name; Wally followed while Joe directed him to the old Allen family home.
• Shimizu gave Cisco the armor modules to study, then joined Katherine in helping Victor treat his awakened wife, Nora.
• Katherine explained that Nora’s muscles needed time to recover and prepared to block her spinal nerve signals so Victor could treat her.

Shimizu performed surgery on Nora, using Yang Release healing to repair her degenerating nerve cells and extend her lifespan by several years. Afterward, Cisco finished modifying Shimizu's White Warrior to use the Speed Force in the Promethium Dagger, and Shimizu eagerly tried to put on the armor.

• Katherine operated on Nora while Shimizu used medical equipment and Yang Release Chakra to repair her nerve cells.
• Shimizu completed the treatment, extending Nora's remaining lifespan from a few months to several years, and Katherine stitched her wounds.
• Mr. Freeze thanked Shimizu, who said he wanted to obtain Professor Victor's knowledge in return.
• Cisco told Shimizu and Katherine that Barry remained quiet and had not recovered his memories despite Alice and Joe taking him to familiar places.
• Cisco explained how he had equipped the White Warrior with the Promethium Dagger, an electrical drive system, and control-assistance modules.
• Shimizu extended his Chakra Thread and prepared to put on the modified White Warrior.

Shimizu tested White Warrior, an armor-type puppet enhanced by the Speed Force, and used it to defeat the Mechanical Warriors attacking Central City. He returned with most of the dagger’s Speed Force still available, while Barry remained focused on recovering his memories.

• Shimizu praised Cisco’s work on White Warrior, then studied the dismantled Mechanical Warrior with him and learned about its technology and weak points.
• Joe, Alice, and Wally returned to Stellar Labs with Barry, and Joe said Barry was doing a little better and planned to take him to visit Dr. Henry Allen.
• When Mechanical Warriors attacked Central City, Shimizu equipped White Warrior and activated the Speed Force in the Nth Metal dagger.
• Shimizu raced through the city at Mach 1.3, using Airflow Manipulation and glider wings to fly and destroy the Mechanical Warriors.
• After defeating the attackers, Shimizu deactivated the Speed Force with 83% remaining and flew back as Wally gathered the wreckage.

Shimizu left Central City with Nora, Victor, and Anger after Barry recovered, then returned to the Demon Slayer World and developed Separation Breathing. He began a sparring match with Uzui Tengen, ending as their blades collided.

• Barry thanked Shimizu for helping him recover, and Shimizu accepted his offer of future help before leaving Central City with Nora, Victor, and Anger.
• Tanjiro trained as Rengoku Kyojuro’s tsuguko, while Shimizu combined Thunder Breathing and Wind Breathing into Separation Breathing.
• Shimizu invited Uzui Tengen and Gyomei Himejima to spar near the Demon Slayer Corps headquarters, with Gyomei acting as referee and safeguard.
• Uzui Tengen attacked Shimizu with Sound Breathing’s Second Form, Resonant Thunderclap.
• Shimizu countered with Separation Breathing’s First Form, Ion Slash, and their attacks met.

Shimizu tested Separation Breathing against Uzui Tengen, whose Musical Score let him anticipate Shimizu’s attacks and seize the advantage. Shimizu developed and unleashed a powerful Fifth Form before Gyomei Himejima stopped the duel, leaving both fighters exhausted.

• Uzui Tengen used his Musical Score to read Shimizu’s movements, trap his blade, and press him with Sound Breathing attacks.
• Shimizu chose not to use ninjutsu, focusing instead on testing Separation Breathing and developing its Fifth Form.
• Shimizu unleashed Separation Breathing: Fifth Form - Wind Lightning Separation Storm, and Uzui Tengen defended against the barrage with his Musical Score.
• Tanjiro, Murata, and other Demon Slayer Corps swordsmen watched the battle as Gyomei Himejima intervened with Stone Breathing: Fifth Form - Arcs of Justice.
• Shimizu and Uzui Tengen stopped fighting, and both were left exhausted after Shimizu’s new form displayed its power.

Shimizu learned about Uzui Tengen’s Musical Score and Gyomei Himejima’s heightened perception, then considered how their abilities might help him understand the Transparent World. In the Naruto World, he sought information on sensory techniques and Taijutsu, but Ebizo instead brought him to meet the Third Kazekage about his canal proposal.

• Uzui Tengen told Gyomei Himejima that Sun Breathing had strengthened his Musical Score, and Shimizu wondered whether it was related to the Transparent World.
• Gyomei Himejima explained how he had developed heightened perception, and he and Uzui Tengen described their abilities to Shimizu.
• Nezuko delivered a mission ordering Shimizu to hunt demons in Nagoya, Aichi Prefecture, and Shimizu left after giving her green beans.
• In the Naruto World, Shimizu considered how to develop perception and body control, and decided to look into Sunagakure’s sensory ninjutsu and Taijutsu.
• Ebizo met Shimizu at the Kazekage’s Office Building and said the Third Kazekage wanted to see him about his canal proposal.

Shimizu presented a waterway proposal adapted for Sunagakure, impressing the Third Kazekage with its potential to develop the Land of Wind. The Third Kazekage promoted Shimizu to Jonin and placed him in charge of a major canal project connecting the Land of Wind and the Land of Rain.

• The Third Kazekage summoned Shimizu, Chiyo, and Ebizo to discuss Shimizu's proposal for reservoirs, sluice gates, and water pumps built with Puppet Technique and ninjutsu.
• Shimizu answered Chiyo and Ebizo's technical questions and explained that detailed routes and construction plans required surveys of the terrain, climate, population, and resources.
• The Third Kazekage promoted Shimizu from Special Jonin to true Jonin, making him the youngest Jonin in history.
• The Third Kazekage approved the waterway design and ordered Sunagakure to establish a canal project connecting the Land of Wind and the Land of Rain.
• The Third Kazekage made himself leader of the canal project and appointed Shimizu deputy leader, authorizing the group to require cooperation from every department except the Anbu.

Shimizu outlined a detailed plan for a canal bringing water from the Land of Rain to Sunagakure, and the Third Kazekage approved his role in leading the project. The Third Kazekage also granted Shimizu access to the Secret Scroll of Sand to choose two ninjutsu, and Shimizu entered its sealed chamber to make his selection.

• Shimizu described the canal project's surveying, excavation, construction, relocation, and maintenance stages to the Third Kazekage.
• The Third Kazekage praised Shimizu's planning and told him to prepare a list of people to protect him during the project.
• Shimizu asked to consult materials on sensory ninjutsu and Taijutsu, and the Third Kazekage authorized him to select two ninjutsu from the Secret Scroll of Sand.
• Seven-Three escorted Shimizu through security checks to the sealed chamber and explained that he had thirty minutes to choose scrolls he could read only inside.

Shimizu chose two Sunagakure techniques, the Art of Heart's Reflection and Scorching Sand Body, to study. In the DC world, he and Victor Fries prepared a new laboratory and began producing the ultra-low-temperature coolant needed for a Freeze Gun.

• Shimizu read that the Third Kazekage developed the Art of Heart's Reflection while seeking a way to sense and absorb Natural Energy without risking Ryūchi Cave's Sage Mode trial.
• Shimizu selected the Art of Heart's Reflection and the First Kazekage's Scorching Sand Body, then received both scrolls from the Anbu guard.
• Shimizu's Hogg's Auto Shop headquarters moved into a high-rise building, where he and Victor Fries established laboratories with newly purchased equipment.
• Victor Fries explained the process for making ultra-low-temperature coolant, the core material for the Freeze Gun.

Shimizu tested the Freeze Gun he and Victor had developed and added its freezing device to White Warrior, then worked with Victor to prepare Solomon Grundy for revival and remote control. Shimizu placed Grundy’s electrified heart into his chest and activated the platform elevator.

• Shimizu injected the finished coolant into his Freeze Gun and froze a mannequin, then mounted the gun on White Warrior.
• Victor warned Shimizu that using the Freeze Device with the Speed Force would impair movement and balance, and they added heaters and antifreeze lubricant to White Warrior.
• Shimizu proposed freezing Solomon Grundy’s prefrontal lobe with low-temperature gel, and Victor suggested a freezing grenade as a contingency.
• Shimizu installed the gel, temperature-control system, and remotely triggered freezing bomb in Solomon Grundy, while Victor and Shimizu restored remote-control technology to the giant.
• Shimizu placed Solomon Grundy’s lightning-charged heart into his chest and pressed the switch as the floor descended on an elevator.

Shimizu and Victor revived Solomon Grundy with electricity and tested his combat abilities against the White Warrior. Grundy proved immensely strong, durable, and quick to heal, while Shimizu’s Breathing Style attacks damaged him only superficially.

• Mr. Freeze activated the electrical current, and Shimizu added Lightning Release to restore Solomon Grundy’s body.
• Shimizu connected Chakra Threads to Grundy and inspected his System Panel, which rated him an A- combat puppet.
• Mr. Freeze controlled Grundy as he charged the White Warrior, whose Mechanism Shield Seal blocked his punch but was pushed back by his strength.
• Shimizu tested Grundy’s defenses with rockets and plasma blades, but Grundy remained unharmed or healed his injuries.
• Shimizu used Separation Breathing sword techniques to strike Grundy’s neck, demonstrating their potential against his strong defenses and regeneration.

Shimizu tested the Solomon Grundy Human Puppet and considered how Hogg United could grow beyond the limits of a conventional gang. He decided to pursue political influence and selected Hamilton Hill as a candidate for Gotham mayor.

• Shimizu used the White Warrior to freeze Mr. Freeze’s Solomon Grundy, then watched Mr. Freeze melt the ice with a chemical spray.
• Shimizu concluded that the Human Puppet filled Hogg United’s need for a powerful combatant who could act without his direct control.
• Shimizu considered Hogg United’s expansion limits and decided it needed to take an official political route.
• Shimizu reviewed the League of Assassins’ intelligence to find a controllable mayoral candidate and rejected several prospects, including Commissioner Gordon.
• Shimizu selected councilman Hamilton Hill, whose government experience and existing voter base made him a promising candidate for Gotham mayor.

Shimizu strengthened his body at the Butterfly Mansion and considered developing Separation Release before a Kasugai Crow summoned him to Ashikita Town, where a member of the Twelve Kizuki had been sighted. He set out, hoping the mission would help him become a Hashira and bring him closer to unlocking a new world.

• Shimizu ordered a League of Assassins member to support Hamilton Hill’s mayoral campaign and use Rattlesnake to send gifts to Hill’s family and expose the gesture to him.
• Shimizu completed body tempering at the Butterfly Mansion, and Shinobu Kocho examined him and found only minor abrasions.
• Shinobu Kocho asked how Shimizu tracked demons, and he claimed his sense of smell let him follow the scent of blood.
• Shimizu considered combining Wind Release Chakra and Lightning Release Chakra to create Separation Release and thought about asking the Third Kazekage for advice.
• A Kasugai Crow ordered Uesugi Shimizu to depart for Ashikita Town, Kumamoto City, after a member of the Twelve Kizuki was sighted there.

Shimizu confronted Byakuya, Lower Rank Three, after learning the demon might have turned Uesugi Shirakawa into a demon a year earlier. He protected two unconscious women from Byakuya’s attacks and began countering the demon’s invisibility Blood Demon Art.

• A wounded Demon Slayer told Shimizu that Lower Rank Three had attacked the nearby swordsmen and described the demon’s victims as having been cut apart.
• Shimizu realized the demon’s behavior recalled the spider family Rui had turned into demons and suspected he had found the one connected to his enemy.
• Shimizu spotted Byakuya carrying two young women, attacked him, and asked whether he had visited the Kōka Region a year earlier.
• Byakuya admitted giving blood to a man who resisted him, and Shimizu attacked to avenge Uesugi Shirakawa.
• Byakuya tried to reach the unconscious women, but Shimizu blasted his neck with a Scarlet Iron bullet and forced him to flee using his invisibility Blood Demon Art.
• Shimizu guarded the women and blocked Byakuya’s hidden attacks by sensing their movements with the Musical Score technique.

Shimizu defeated Lower Rank Three Byakuya, collected his blood, and continued searching for the Blue Spider Lily. At a Pillar meeting, Mitsuri Kanroji was officially welcomed as a Pillar alongside Shimizu, while Tomioka Giyu mistook Shinazugawa Sanemi’s challenge as an invitation to bond.

• Shimizu activated the Musical Score, shot Byakuya out of his invisible state, beheaded him, and collected a vial of his blood.
• Shimizu reflected on the search for the Blue Spider Lily and his plans to test whether it could grant him extraordinary regeneration and longevity.
• At the Ubuyashiki residence, Kagaya announced that Lower Rank Three had been eliminated and welcomed Mitsuri Kanroji and Shimizu as Pillars.
• Mitsuri thanked Iguro Obanai for the stockings he had given her, while Uzui Tengen teased Shimizu about Iguro’s interest in her.
• Shinazugawa Sanemi challenged Tomioka Giyu to fight after the meeting, and Giyu accepted, believing the sparring was Sanemi’s way of bonding.

Ubuyashiki Kagaya named Shimizu and Mitsuri Kanroji the Separation and Love Hashira and directed them to obtain Nichirin Blades marked “Demon Annihilation.” In the Infinite Castle, Muzan condemned the Twelve Kizuki’s failures and demanded they find the Blue Spider Lily or kill a Hashira and destroy the Demon Slayer Corps within two years.

• Ubuyashiki Kagaya named Shimizu the Separation Hashira and Mitsuri Kanroji the Love Hashira, and told them to have their Nichirin Blades engraved with “Demon Annihilation.”
• Muzan rebuked the Lower Rank Demons for losing three members in succession and failing to advance his goals.
• Doma interrupted Muzan, and Akaza attacked him before Kokushibo stopped Akaza and threatened punishment.
• Muzan gave the Twelve Kizuki two choices for their next gathering: find the Blue Spider Lily or bring him a Hashira’s head and destroy the Ubuyashiki Clan and Demon Slayer Corps within two years.
• The demons departed, while Gyokko told Doma that he had intelligence he could use to lure Hashira, and Doma agreed to join him.

In Swordsmith Village, Shimizu demonstrated his puppet skills to Kanamori Kanzō, Kagawahara Tetsujin, and Kotetsu. They asked him to examine a damaged Sengoku-era combat puppet, Yoriichi Type Zero, and he arrived at the courtyard eager to study it.

• Shimizu reflected that his experiments with the gathered plants had not changed his blood, though they had improved his cooking.
• Kanamori Kanzō, Kagawahara Tetsujin, and Kotetsu approached Shimizu to ask about his Nichirin Blade requirements and mechanical skills.
• Shimizu showed the swordsmiths how his armor puppet assembled, explaining that he used threads and mechanisms.
• Kanamori Kanzō explained that the village wanted Shimizu to repair Yoriichi Type Zero, a powerful combat puppet from the Sengoku Era.
• Shimizu agreed and followed the swordsmiths to a courtyard, where Kotetsu revealed the damaged six-armed puppet.

Shimizu tested Yoriichi Type Zero, studied its Sun Breathing forms and blueprints, then dismantled it to inspect its mechanisms. The swordsmiths identified the puppet’s rusted sword as an exceptional blade from three hundred years ago, likely wielded by the swordsman it was modeled after.

• Kotetsu wound up Yoriichi Type Zero and explained that its mainsprings now kept it operating for only ten minutes.
• Shimizu fought the puppet, observed its twelve Sun Breathing forms, and compared them with the Hinokami Kagura and his own Separation Breathing.
• After the puppet stopped, Shimizu pointed out several mechanical faults and examined the surviving blueprints.
• Shimizu dismantled Yoriichi Type Zero and uncovered a black, rusted sword inside its spinal area.
• Kanamori Kanzō and Kagawahara Tetsujin examined the sword, and the village chief judged it a masterwork likely used by the swordsman modeled by the puppet.

Shimizu studied and repaired Yoriichi Type Zero, then used its mechanisms and his Puppet Technique knowledge to build the stronger Yoriichi Type One. As Shimizu finished testing the puppet, a porcelain jar rolled beneath a tree near the Swordsmith Village.

• Shimizu examined Yoriichi Type Zero's worn mechanisms and studied its construction while Kotetsu and Kanamori Kanzō watched over him.
• Shimizu sketched plans to repair Yoriichi Type Zero and create a new puppet combining its craftsmanship with Naruto-world Puppet Technique.
• Kanamori Kanzō and Haganezuka Hotaru forged the parts, and Shimizu completed Yoriichi Type One in two days.
• Shimizu tested Yoriichi Type One's firearm and electrically heated Nichirin Blade until it turned red.
• A porcelain jar rolled beneath a tree near the Swordsmith Village.

Shimizu and Yoriichi Type One fought Doma, Upper Rank Two, near the Swordsmith Village as the demon attacked with ice-based Blood Demon Arts. Shinobu Kocho and Mitsuri Kanroji headed toward the battle after the village raised an alarm, while Shimizu worked to remove the ice crystals from his body.

• Shimizu encountered Doma in the woods, and Doma revealed he had come looking for the women at the hot springs and that Gyokko had gone to the village.
• Doma attacked Shimizu and Yoriichi Type One with Lotus Leaf Ice, but Yoriichi Type One blocked the crystals while Shimizu countered with Lightning Release: Lightning Cage.
• Doma sent ice vines at Yoriichi Type One and unleashed Frozen Clouds, while Shimizu used the Delicate Illness Extraction Technique to remove ice crystals from his lungs.
• Mitsuri Kanroji and Shinobu Kocho noticed the sudden cold and fog, then heard the village's alarm that a demon was attacking.
• Shinobu Kocho rushed toward the village, followed by Mitsuri Kanroji, as Shimizu used Chakra Thread to control Yoriichi Type One and continued fighting Doma.