Chapter Summaries

Sosuke Aizen visited Mayuri Kurotsuchi and questioned him about Soul Society’s laws and the execution of Rukia Kuchiki. He revealed that he wanted to know whether Mayuri wished to learn the truth of the world, and Mayuri realized Aizen had come because of his recent experiment.

• Sosuke Aizen praised the unusual tea in Mayuri Kurotsuchi’s reception room before saying he wanted to discuss Rukia Kuchiki’s execution.
• Aizen asked whether it was reasonable to execute someone for breaking a taboo, and Mayuri argued that punishment should depend on the crime’s specific harm.
• Mayuri asked whether Aizen had come to seek help for Rukia, but Aizen said he had come to confirm something instead.
• Sosuke Aizen asked Mayuri Kurotsuchi whether he wished to know the truth of the world.
• Mayuri connected Aizen’s visit to the recent failed experiment that had briefly created a powerful form of soul materialization, and said no researcher could refuse the chance to learn more.

Sosuke Aizen tried to recruit Mayuri Kurotsuchi by offering freedom for his forbidden research, but Mayuri revealed that Aizen had misunderstood his response. Their spiritual pressures clashed, and Mayuri began to demand better terms.

• Aizen questioned who had the right to preserve the three realms’ cycle and revealed that he knew about Mayuri’s recent forbidden experiment.
• Aizen offered Mayuri a choice between exile or joining him with resources and protection for his research.
• Mayuri challenged Aizen’s assumption that he would give up his position as director of the Research and Development Institute.
• Aizen released his spiritual pressure, and Mayuri answered with his own, causing golden arcs to flash and nearby equipment to break.
• Mayuri told Aizen that he had not refused and that Aizen needed to pay more.

Mayuri Kurotsuchi accepted Aizen’s offer and prepared to defect from Soul Society, then helped Aizen extract the Hogyoku from Rukia Kuchiki before her execution. Byakuya Kuchiki discovered them and attacked, but Mayuri stopped his blade with two fingers.

• Mayuri studied Aizen’s Hogyoku research and ordered Nemu to erase project data and prepare Kisuke Urahara’s materials for transfer.
• During the Ryoka invasion, Mayuri learned of Aizen’s supposed assassination and prepared to help him remove the Hogyoku from Rukia before her execution.
• Aizen and Mayuri used Kyoka Suigetsu to pass the guards and enter Rukia’s cell, where Aizen put her into a deeper coma.
• Aizen began using a reagent to separate the Hogyoku from Rukia while Mayuri watched for intruders.
• Byakuya arrived, saw Aizen and Mayuri beside Rukia, and attacked Aizen, but Mayuri caught Byakuya’s blade between two fingers.

Mayuri Kurotsuchi overwhelmed Byakuya Kuchiki with superior spiritual pressure and drove him into the ruins, while Sosuke Aizen recovered the Hogyoku from Rukia Kuchiki. Aizen and Mayuri then faced the assembled Gotei 13, where Genryusai Shigekuni Yamamoto demanded an explanation.

• Mayuri Kurotsuchi caught Byakuya Kuchiki's sword between two fingers and blocked Senbonzakura with an AT Field.
• Byakuya Kuchiki released his Bankai, Senbonzakura Kageyoshi, but Mayuri's layered AT Fields scattered its blades.
• Mayuri Kurotsuchi struck Byakuya Kuchiki through the Penitence Cell walls, leaving him buried in rubble.
• Sosuke Aizen put away the Hogyoku he had extracted from Rukia Kuchiki and praised Mayuri for defeating Byakuya.
• Mayuri Kurotsuchi and Sosuke Aizen stood atop the Penitence Cell as Gotei 13 Captains and officers surrounded them.
• Genryusai Shigekuni Yamamoto addressed Aizen and Mayuri, demanding an explanation.

Sosuke Aizen revealed his overwhelming spiritual pressure and faced the Soul Reapers who had gathered at the Penitence Cell. As Toshiro Hitsugaya charged him, Genryusai Shigekuni Yamamoto attacked Mayuri Kurotsuchi, then unleashed Ryujin Jakka after Mayuri’s [AT Field] withstood his slashes.

• Sosuke Aizen crushed his glasses, revealed his true bearing, and released spiritual pressure that stunned the Soul Reapers.
• Toshiro Hitsugaya charged Aizen with Hyorinmaru, and Yamamoto ordered Sajin Komamura to assist him.
• Yamamoto vanished behind Mayuri Kurotsuchi and struck him with Ryujin Jakka, but Mayuri blocked the slash with an orange [AT Field].
• Yamamoto struck the barrier a second time and cracked it, while Mayuri explained its defensive power and hinted that the Soul Reapers’ arrival had served their objective.
• Yamamoto raised Ryujin Jakka, released its destructive flames, and declared, “All things in the universe, turn to ashes.”

Aizen and Mayuri escaped Yamamoto’s and the Soul Reapers’ attacks by exploiting their power and the Seireitei’s vulnerability. The next day, Yamamoto learned how thoroughly the conspirators had infiltrated the Soul Society and placed the Gotei 13 on a state of war.

• Yamamoto trapped Mayuri in a blazing fire tornado, but Mayuri used Quincy Reishi Subordination to create a water dragon and emerged unscathed.
• Hitsugaya froze Aizen with his Bankai, but Aizen broke free and knocked him unconscious with a single punch.
• Komamura attacked Aizen with his Bankai, but Aizen shattered its blade and blasted the giant warrior down with a destructive spell.
• Aizen and Mayuri escaped under Negacion alongside Gin Ichimaru and Kaname Tōsen as Yamamoto held back to protect Seireitei.
• Shunsui reported that Central 46 had been murdered before the Ryoka invasion, the 12th Division’s research had been stolen, and Gin, Tōsen, and Nemu were traitors.
• Yamamoto ordered the Gotei 13 to enter a state of war.

In Hueco Mundo, Aizen explained the Hogyoku’s deeper nature to Mayuri Kurotsuchi, who began researching the two Hogyoku. Elsewhere, Masaki Keigo activated his Light Particle Converter beneath Kumamoto City and began transforming into a lifeform of light.

• Mayuri Kurotsuchi examined the two Hogyoku in Las Noches while Aizen described his research into souls and the Hogyoku’s power to bridge Shinigami and Hollows.
• Aizen told Mayuri Kurotsuchi to continue the research, then left with Gin Ichimaru and Kaname Tōsen as Soul Society prepared to attack.
• Mayuri Kurotsuchi turned to the Hogyoku and planned to upload his research results.
• In the ruins beneath Kumamoto City, Masaki Keigo activated Athena and powered the Light Particle Converter with energy from the Max Power System.
• The converter enveloped Masaki Keigo in light, making his body vanish as he transformed into a lifeform of light quanta.

Masaki Keigo transformed into the Giant of Light, awakened the giant’s combat memories, and returned to human form before adopting Gedi. After developing a portable transformation device, he was contacted by TPC about an ultrancient capsule discovered in Mongolia.

• Masaki Keigo converted into the Giant of Light, explored his new perception and powers, and created a miniature black hole in his palm.
• Masaki Keigo absorbed combat memories from the giant’s super-ancient genes before an energy warning forced him back into human form.
• Masaki Keigo found the awakened Gedi in the ruins, picked up the Labrador puppy, and took it back to his laboratory.
• Masaki Keigo spent three weeks building a portable light-particle switching device modeled after Daigo’s Sparklence.
• A TPC intelligence official told Masaki Keigo that an ultrancient capsule had been discovered in Mongolia and that Director Sawai wanted his expert opinion.

Masaki Keigo helped GUTS decode an ancient message warning that Golza and Melba would awaken and that a Giant of Light could protect Earth. After Melba appeared on Easter Island, GUTS deployed to search for the giant, while Masaki promised Reiko he would not leave again.

• Kashiwamura Reiko cut open an artificial meteorite, and Masaki Keigo reported that its Earth rock dated back roughly 30 million years.
• Masaki touched the device inside the meteorite, activating a hologram of Yuzare, whose warning was translated by Horii and Yazumi.
• Yuzare foretold the return of Golza and Melba and urged her descendants to revive the Giant of Light hidden in the Land of Tiga, but the message cut off before revealing how.
• Daigo recognized Golza from the creature he had encountered in Mongolia, and Masaki asked Yazumi to search for the Land of Tiga, locating it in northeastern Japan.
• TPC's Australian branch reported that Melba had awakened on Easter Island, so Iruma Megumi ordered GUTS to deploy and search for the giant.
• Reiko asked whether Masaki was truly relying on a giant and whether he would leave again, and Masaki said he would stay as he carried the Light Particle Converter.

Masaki Keigo joined GUTS as they discovered the Pyramid of Light and the three Giant Stone Statues inside it. After Golza and Melba destroyed the pyramid and two statues, Daigo’s desperate attempt to stop them ended with him transforming into light and reviving Tiga.

• Masaki Keigo joined GUTS’s search for the pyramid, and his PDI led the team to it in the forest.
• Daigo entered the pyramid through its golden wall, and Shinjoh and Horii followed him to the three Giant Stone Statues.
• Munakata ordered the team to retreat when Golza and Melba approached, but the Monsters destroyed the pyramid and two statues.
• Daigo flew toward the Monsters in GUTS Wing 1 and fired signal flares, drawing their attention.
• Melba damaged Daigo’s aircraft, leaving him trapped in the burning cockpit with its ejection system disabled.
• Daigo grasped the Sparklence, became light, and entered the fallen statue, reviving Tiga as Masaki Keigo watched.

Daigo’s Tiga fought Golza and Melba, switching forms but faltering when his chest timer began flashing red. As the monsters closed in on the fallen Tiga, Masaki Keigo activated his Light Particle Converter, and a White Giant emerged beside them.

• GUTS members watched as Tiga stopped Golza’s charge and switched to Power Type to hurl it into a mountainside.
• Melba attacked from the air, prompting Tiga to switch to Sky Type, dodge its beam, and pursue it at supersonic speed.
• Tiga struck Melba’s wing, but his chest timer began flashing red and his strength waned.
• Golza and Melba attacked Tiga together, knocking him to the ground as his energy ran low.
• Masaki Keigo activated his Light Particle Converter, and a White Giant appeared as Golza approached the fallen Tiga.

A second, white giant appeared and effortlessly defeated Golza and Melba, revealing Masaki Keigo as the giant. After destroying both Monsters, he acknowledged the weakened Tiga and vanished into the sky.

• A white giant emerged from a pillar of light as Golza turned away from Tiga to attack him.
• The white giant evaded Golza's charge and kicked it down, then severed Melba's wings and knocked it into Golza.
• Golza and Melba fired beams at the white giant, but he blocked them with an energy barrier and fought both Monsters at close range.
• Shinjoh recognized that the white giant was holding back, while Masaki Keigo unleashed a powerful beam that pierced both Monsters and carved a ravine into the valley.
• The white giant nodded to the exhausted Tiga, then turned into light and disappeared into the sky.

TPC’s leaders debated whether humanity should trust the giants or rebuild its arms, while Masaki Keigo demonstrated that conventional weapons could not harm a giant. He then proposed the Global Defense System, a network of space elevators and energy cables meant to protect Earth.

• Director General Sawai asked Iruma Megumi whether humanity should rely on the giants and Yuzare’s prophecy, and she said she still had doubts despite the predictions coming true.
• Police Bureau Chief Yoshioka Tetsuji argued against trusting unknown giants, while Staff Officer Nanhara warned that rearmament could destroy the peace between nations.
• Director General Sawai asked Masaki Keigo for his assessment, and Masaki showed a simulation in which conventional weapons and a nuclear bomb failed to damage a giant.
• Masaki Keigo revealed a plan to build space elevators and connect them with energy cables to form a planetary barrier called the Global Defense System.

Masaki Keigo presented the Global Defense System, arguing that its solar-powered towers could provide sustained defense, enable space development, and ease the energy crisis. The leaders approved of the plan’s potential, while Masaki Keigo privately saw it as a way to amplify the Giants of Light.

• Director Sawai asked Masaki Keigo to explain the Global Defense System, and Masaki Keigo described its solar-powered towers and demonstrated how they could destroy an incoming meteorite.
• Yoshioka questioned whether the system’s firepower justified building it instead of improving the antimatter-powered Max Power System, and Masaki Keigo argued that unlimited solar energy made his proposal more practical.
• Yoshioka asked how Masaki Keigo would persuade other countries to fund the project, and Masaki Keigo explained that it would also enable a space elevator and deliver cheap, clean energy to Earth.
• Masaki Keigo proposed placing the system under the shared authority of an Earth Defense Council representing TPC and participating nations, and the gathered leaders nodded in approval.
• Masaki Keigo privately reflected that the system would also amplify the power of the Giants of Light.

After Masaki Keigo helped secure a space-elevator pilot project and emergency GUTS Wing upgrades, a report of a Monster on Kujiraga Island prompted Director Sawai and Masaki to travel there. Masaki warned Sawai that the Ultra-Ancient civilization might pose an unknown threat and identified the reported Monster as Gakuma, an ancient island guardian said to turn things to stone.

• TPC and world leaders agreed to build a space-elevator pilot project in the great Eastern nation, while TPC began weaponizing GUTS Wing 1 and GUTS Wing 2.
• TPC received a civilian report of a Monster on Kujiraga Island, and Director Sawai decided to lead a ground-force investigation because GUTS could not yet deploy.
• Masaki Keigo requested to accompany Sawai, and Sawai approved before they boarded a plane to the island.
• During the flight, Masaki told Sawai he feared an unknown threat connected to the Ultra-Ancient civilization and its possible Giants.
• Masaki showed Sawai an ancient scroll describing Gakuma, a gigantic stone-like guardian deity that could turn all things to stone.

TPC investigated Gakuma’s attack on the island while Masaki Keigo began researching three miners turned to stone. At GUTS headquarters, Daigo learned that Tiga’s forms specialized in different abilities, then discovered the white giant’s true body was also a stone statue, suggesting a modern human had become a giant.

• Masaki Keigo explained that Gakuma had attacked because the quarry encroached on its territory, and TPC confirmed the Monster was hiding in a mountain.
• Sawai learned that three missing miners had been transformed into stone while retaining faint brainwave activity, and he ordered Masaki Keigo to research a way to save them.
• Yazumi showed Daigo that Tiga’s red form greatly increased strength and his purple form increased speed, while the white giant excelled in combat technique.
• After Yazumi left, Yuzare appeared to Daigo and said he could revive the giant by becoming light because he carried the genes of an ancient warrior.
• Daigo questioned Yuzare about the white giant, and she explained that he had left behind only a combat body, a stone statue.
• Daigo realized the white giant might have been a modern human who became a giant.

GUTS began its operation against the two Gakumas on Kira Island, but Tiga was petrified while saving Daigo and Shinjoh. The mysterious white giant freed Tiga and the trapped miners, helped defeat both monsters, and vanished before Tiga could question him.

• Masaki Keigo briefed GUTS on Gakuma’s defenses and petrification beam, and Munakata assigned the pilots their roles in the attack.
• The ground forces drew out Gakuma Alpha, while Horii and Masaki Keigo studied its beam and tried to find a way to reverse petrification before three miners died.
• Gakuma Beta emerged beneath GUTS Wing 2 and petrified its wing, prompting Daigo to transform into Tiga and catch the falling aircraft.
• Tiga fought both Gakumas but was petrified by their beams, and Masaki Keigo secretly transformed into the white giant and restored Tiga.
• The two giants defeated Gakuma Alpha and Beta, and the white giant healed the three miners before flying away; Tiga then left the island.

After the Kira Island incident, the Kirieloids announced their intention to rule Earth and unleashed a supernatural attack on a residential district. Masaki Keigo transformed into Impat, saved the threatened residents, and defeated the Kirieloid monster, while Daigo began to suspect that Impat was someone inside TPC.

• TPC sent Iruma Megumi to reassure the public, but the possessed host declared the Kirieloids would purify Earth and destroyed a construction site with fire from the sky.
• Masaki Keigo used satellite data to locate a growing underground energy source beneath the K1 Region, and Munakata dispatched Daigo, Shinjoh, and Rena to evacuate residents.
• A Kirieloid fanatic triggered eruptions of fire across the district, leaving Daigo ready to reveal himself as Tiga to save the trapped people.
• Impat appeared and extinguished the fires, leading Daigo to infer that the giant had accessed TPC's satellite data.
• The fanatic transformed into a giant Kirieloid and fought Impat, who mocked the Kirieloids for fleeing the ancient-era darkness before defeating and destroying it.

After Ultraman Impat’s victory, public outrage weakened TPC, and Masaki Keigo won approval to begin Project E, a biological weapon built from Eboron Cells. He started assembling the project and learned that GUTS had recovered fragments of Ligatron, whose armor he wanted for EVA.

• The public praised Ultraman Impat while condemning TPC for failing to stop the Monster.
• Masaki Keigo proposed Project E, a controllable biological weapon powered by Eboron Cells and equipped with Monster traits.
• Director Sawai requested a detailed risk assessment, then agreed in principle to preliminary preparations for Project E.
• Masaki Keigo recruited Ryoichi Sanada, who promised to lead the Eboron Cells work.
• GUTS asked Masaki Keigo to analyze fragments from a space Monster attack, and he recognized the Monster as Ligatron and its armor as a potential fit for EVA.

GUTS learned that Ligatron’s armor absorbed attacks through an advanced phase-change structure and began developing a weapon to defeat it. A recovered message from the Gypota 3 crew revealed that they were trapped inside Ligatron, just as the Monster appeared at a high-purity energy facility.

• Masaki Keigo explained that Ligatron’s armor absorbed kinetic and thermal energy through phase changes, making it nearly impossible to damage while its energy remained.
• Horii proposed a weapon that could outpace the armor’s phase changes or destroy its structure, and Captain Iruma Megumi assigned Horii and Masaki Keigo to develop it.
• Yazumi investigated reports that the Gypota 3 astronauts had appeared to their families and found a hidden email from Dr. Ezaki.
• Dr. Ezaki’s recording revealed that a life-form of light had swallowed Gypota 3, fused the crew and spacecraft into Ligatron, and left the astronauts conscious but unable to control it.
• An alarm reported that Ligatron was heading for the K-3 District high-purity energy storage facility.