Chapter Summaries

Xia You watched Cyrus summon Palkia, while his own Dialga remained protected inside its Great Ball, and led an assault on Team Galactic before confronting Cyrus. The chapter ended with Cyrus sending out his Honchkrow, Houndoom, and Weavile to face Xia You.

• Cyrus used the stolen Orbs and a machine to open Space-Time Portals, summoned Palkia, and trapped it with the Red Chain, but Dialga did not appear.
• Xia You confirmed that his Dialga stayed inside its Great Ball, then led Cynthia, Cheryl, May, and Gardenia in an attack on Team Galactic.
• Shelly and Courtney joined the fight, while Cynthia battled Saturn and J after J agreed to help Cyrus for double her original price.
• Xia You confronted Cyrus, mocked his plan, and rejected his offer to join Team Galactic, describing his own ideal as a carefree life by the sea with his woman.
• Cyrus released Honchkrow, Houndoom, and Weavile to stop Xia You from interfering with his plan.

Xia You freed Palkia from Cyrus’s Red Chain and revealed that he had already captured Dialga, ending Cyrus’s plan. As Necrozma appeared to take Cyrus away, Xia You ordered Deoxys to stop it, and the two Pokémon began to clash.

• Xia You sent out Deoxys, which defeated Cyrus’s Pokémon and shattered the Red Chain binding Palkia.
• Palkia escaped through its portal, and Xia You told Cyrus that Dialga was already in his possession and that Team Galactic’s plans were over.
• Necrozma emerged from a rift and moved to seize Cyrus, whom Shelly recognized as the Pokémon that had taken Archie and Maxie.
• Deoxys struck Necrozma and teleported between it and Cyrus, forcing Necrozma to confront it.
• Xia You ordered Deoxys to use Double Team as Necrozma gathered psychic power for an attack.

Xia You used Deoxys to hold off Necrozma while Team Galactic’s leaders were restrained, expecting the battle to draw Arceus’s attention. Arceus appeared and focused on Necrozma, which abandoned its attempt to seize Cyrus and attacked Xia You instead.

• Deoxys swarmed Necrozma with clones, while Cynthia kept J and Saturn from escaping and Xia You protected the group from Necrozma’s sweeping beam.
• Xia You called on Deoxys to reveal its strength, but Arceus suddenly appeared through the storm clouds and turned its attention to Necrozma.
• Cyrus laughed at Arceus’s arrival, and Xia You ordered Gengar to put him to sleep with Hypnosis.
• Necrozma reached for the sleeping Cyrus, but Deoxys used Teleport to block it; Necrozma then changed targets and charged at Xia You.
• Gengar surged forward to meet Necrozma and defend Xia You.

Xia You and his Pokémon helped defeat Team Galactic while Arceus battled Necrozma above Mt. Coronet. When Xia You sent Deoxys into Attack Forme to strike both legendary Pokémon, Arceus recognized Xia You as an intruder disrupting the world's order and attacked him and Deoxys.

• Gengar struck Necrozma with a powerful Shadow Ball, briefly holding it back and giving Xia You time to prepare Rayquaza's Great Ball.
• Arceus intervened and fought Necrozma in the sky while Deoxys stopped Team Galactic's attempt to reclaim Cyrus.
• Cynthia defeated and bound J and Saturn as the remaining Team Galactic members fled, leaving the organization without its leaders.
• Xia You ordered Deoxys into Attack Forme, and Deoxys's energy beam struck both Arceus and Necrozma, injuring them and drawing their attention.
• Arceus sensed that Xia You was an uninvited visitor and attacked him and Deoxys to correct what it saw as a disruption to the world's order.

Xia You expected Arceus to turn on him after dealing with Necrozma, so he cleared the area and sent out Black Rayquaza alongside Deoxys. After Mega Evolving Rayquaza, he launched both Pokémon against Arceus and Necrozma, leaving the four powerful Pokémon locked in a chaotic, closely contested battle.

• Xia You ordered Cheryl, Gardenia, Courtney, Shelly, and Cynthia to take Cyrus, Saturn, and J away from the fight.
• Xia You released Black Rayquaza and commanded it to use Dragon Ascent, triggering its Mega Evolution.
• Xia You sent Mega Rayquaza and Attack Forme Deoxys to attack Arceus and Necrozma together.
• Mega Rayquaza and Deoxys pressed their opponents, while Arceus and Necrozma struggled to cooperate and attacked each other as well.
• Arceus and Necrozma used their remaining Plates and Necrozma's unpredictable energy attacks to resist, leaving the battle deadlocked.

Cynthia stayed behind while Cheryl and the others took Cyrus and the prisoners downhill, but Necrozma broke away from the battle and caught up with them. It escaped through a spatial doorway with Cyrus, leaving Arceus furious at Xia You and his Pokémon and preparing to fight seriously.

• Cynthia volunteered to stay near Xia You while Cheryl, Gardenia, Shelly, and Courtney escorted Cyrus and the others toward safety.
• Necrozma abandoned the battle and raced downhill after Cyrus, with Deoxys pursuing it and Xia You running after them.
• Necrozma overwhelmed the Pokémon guarding Cyrus, grabbed him, and escaped through a spatial doorway before Arceus could stop it.
• Arceus blamed Xia You and his Pokémon for interfering and turned toward Mega Rayquaza and Deoxys as its wheel and body began to blaze with light.

Xia You and his Pokémon fought Arceus after Mega Rayquaza’s power ran out, but Dialga’s intervention triggered a strange surge of time energy. Xia You and Cynthia found themselves on a lush, unfamiliar Mt. Coronet and suspected they had traveled into the past.

• Xia You brought Dialga into the battle after Mega Rayquaza reverted, allowing Dialga, Rayquaza, and Deoxys to hold Arceus at a stalemate.
• Arceus unleashed Draco Meteor across the battlefield, so Rayquaza and Deoxys left the fight to protect Shelly and the others while Gengar guarded Xia You and Cynthia.
• Xia You ordered Dialga to use Roar of Time, but Arceus interrupted it and struck Dialga down before Dialga collided with Arceus in a burst of green light.
• Xia You and Cynthia awoke in a quiet, verdant area of Mt. Coronet, with their companions and the battling Pokémon nowhere to be seen.
• Xia You concluded that Dialga’s time power had probably sent them back to the past.

After being stranded centuries in the past without their Dialga, Xia You and Cynthia planned to find the era’s Dialga and return to their own time. They headed toward the place where Xia You had previously found Dialga, leaving their search for a way home unresolved.

• Xia You concluded that his clash with Arceus had disrupted the time travel and left their Dialga, Rayquaza, and Deoxys behind, while Cynthia and their other Pokémon remained with them.
• Xia You and Cynthia checked their supplies and combat strength, marked a tree to remember where they had arrived, and began descending Mt. Coronet.
• Xia You provoked Cynthia and warned her not to challenge him, displaying Gengar and explaining that Charizard could still Mega Evolve; Cynthia backed down.
• Xia You changed direction and told Cynthia he wanted to search the nearby place where he had previously found Dialga.
• Cynthia was astonished that Xia You had caught Dialga on Mt. Coronet, and Xia You boasted that this set him apart from everyone else.

Xia You and Cynthia searched unsuccessfully for Dialga, then descended Mt. Coronet toward a settlement and realized they were in the Hisui period. They met Rei, Akari, and a blond man, and suspected that Akari had also traveled through time before the group left without explaining further.

• Xia You and Cynthia searched the skies over Mt. Coronet for Dialga but found no trace of its hiding place.
• Xia You and Cynthia spotted a settlement by a lake and headed toward it, with Cynthia planning to speak to the locals.
• Cynthia recognized the unfamiliar Pokémon forms as Hisuian Forms and explained that they were in Ancient Sinnoh.
• Xia You and Cynthia argued over whether Pokémon from Hisui could adapt to life in the future, then traded barbs about Xia You's romantic history.
• Xia You and Cynthia met Rei, Akari, and a blond man, who noticed their modern clothes and hurried away with the others.
• Cynthia concluded that Akari had traveled through time too, and she and Xia You noted Akari's resemblance to Dawn.

Xia You persuaded Cynthia to follow Akari, Rei, and Volo, revealing that he knew their roles and the dangerous events ahead. The pair tracked them to a secluded estate, where they stopped to plan their next move.

• Xia You recognized Akari, Rei, and Volo and persuaded Cynthia to follow them instead of seeking local clues.
• Xia You sent Charizard and Dragonite to keep watch as he and Cynthia followed the group northeast.
• Xia You told Cynthia that Akari came from another world and that Volo was secretly the mastermind behind the coming crisis.
• Cynthia recognized the route toward the place where Celestic Town would later stand and wondered what it looked like in this era.
• Akari, Rei, and Volo left the main route and crossed a broad river to reach a secluded estate after dark.
• Xia You and Cynthia watched the estate from cover, and Cynthia began thinking through a plan for what to do next.

Cynthia and Xia You entered the Ancient Retreat, where its owner Cogita recognized them as travelers from another space-time and explained her role in guiding Akari, the Chosen One. Cogita revealed that Dialga and Palkia were inside the space-time rift, and that opening it to reach Dialga would endanger Hisui.

• Cynthia and Xia You left the forest and went to the Ancient Retreat, where Cogita invited them inside despite Volo's suspicion that they had followed him, Akari, and Rei.
• After Volo, Akari, and Rei went upstairs, Cogita introduced herself and identified Cynthia and Xia You as people from another space-time.
• Cynthia admitted that she and Xia You had followed the group because they suspected Akari was also a time traveler, and Cogita confirmed that Akari was the Chosen One she had been waiting to guide.
• Cynthia told Cogita that a temporal disturbance involving Dialga had brought them to Hisui, more than a thousand years in the past.
• Cynthia asked where Dialga was, and Cogita explained that Dialga and Palkia were inside the space-time rift and that opening it would put Hisui in great danger.

Xia You and Cynthia stayed at Cogita’s Estate while discussing how to find Dialga without endangering the world. Xia You apologized for his past actions, and the two buried the hatchet before joining Cogita, Volo, Akari, and Rei for dinner.

• Cogita warned Cynthia and Xia You that opening a space-time rift could tear the world apart, and she admitted she did not know where to find one.
• Cogita assigned Xia You and Cynthia the same guest room, and Xia You stopped Cynthia from correcting her assumption that they were a couple.
• Xia You cornered Cynthia to make her listen, then apologized for framing her and for the trouble caused by Shelly, Courtney, Sabrina, Erika, Xiaojuan, Xiaotao, and Xiaoyu.
• Cynthia accepted Xia You’s apology, and they shook hands and agreed to let bygones be bygones, though Xia You teased her about being his head wife.
• Cogita noticed that Xia You and Cynthia seemed more relaxed with each other when they arrived for dinner with Volo, Akari, and Rei.

At dinner, Cynthia's remarks about the future Team Galactic unsettled the group, while Xia You noticed Volo's reaction to the idea of controlling Dialga and Palkia. Later, Akari privately confirmed that she and Xia You and Cynthia came from other times and spaces, then pointed out Cynthia's resemblance to Volo, leaving Cynthia wondering if he was her ancestor.

• Cogita told Akari to visit Lake Verity, Lake Valor, and Lake Acuity and complete the trials there, while Volo asked Cogita to look after her.
• Cynthia described the destructive Team Galactic from her time, and Rei and Akari insisted that the Team Galactic they knew protected Hisui's Pokémon and environment.
• Xia You noticed Volo's disdain when Cynthia mentioned controlling Dialga and Palkia, and Cynthia drew useful information from the dinner conversation.
• Akari visited Xia You and Cynthia privately, confirmed they had come from another time and space, and recounted how Arceus brought her to Hisui and changed her phone.
• Akari remarked that Cynthia resembled Volo, prompting Cynthia to wonder whether the ambitious man was her ancestor.

Cynthia and Xia You learned from Akari that she planned to seek the Red Chain to address the red sky and space-time rift, while Cogita asked Cynthia about the future. The next morning, Adaman and Irida arrived to help with the mission, and the chapter ended as they met Xia You and Cynthia.

• Cynthia confirmed that she knew Uxie, Mesprit, and Azelf from her time, and told Akari she was a Champion while Xia You claimed to be stronger than her.
• Akari revealed that she planned to obtain the Red Chain, which Volo and Cogita believed could stabilize the crisis and close the space-time rift after the sky above Jubilife Village turned red.
• Cogita visited and asked Cynthia about the future, and Cynthia described its cities, vehicles, Pokémon battles, communications, and entertainment before Cogita and Akari left.
• Cynthia realized she had forgotten to ask Cogita for another room and spent the night sharing one with Xia You, sleeping poorly while he slept on the floor.
• Volo and Cogita misunderstood Cynthia's exhausted appearance at breakfast, and Cynthia blushed as Xia You acted innocent.
• Adaman and Irida arrived with clan members to help, and their attention turned to Xia You and Cynthia after they exchanged greetings.

Xia You and Cynthia left Cogita’s estate and traveled toward a nearby town, but a Ghost-type-infested forest brought them face-to-face with a Hisuian Zoroark. Xia You decided he wanted to catch it, while Cynthia warned that it might not survive outside Hisui.

• Adaman and Irida met Xia You and Cynthia, learned they were travelers from another time, and watched them leave Cogita’s estate after Akari and Cogita tried to persuade them to stay.
• Xia You and Cynthia headed toward a town near Mt. Coronet, discussing Akari’s mission and their plans to wait until she obtained the Red Chain and opened the space-time rift.
• They entered a dark, withered section of forest, where a blue-green Will-O-Wisp attacked Charizard from the trees.
• Charizard charged into the forest, and Xia You and Cynthia followed to find him facing an unfamiliar gray-white Zoroark.
• Xia You identified it as Zoroark’s Hisuian Forme and said he wanted to catch it, but Cynthia warned that its body might not withstand the future environment.

Xia You battled a Hisuian Zoroark and tried to catch it, but three women interrupted the capture and claimed they were Pine Bamboo Plum. Gengar pursued the fleeing Zoroark while Xia You faced the newcomers.

• Xia You sent Umbreon to battle the Hisuian Zoroark and confirmed it was a Normal- and Ghost-type.
• Umbreon overcame Zoroark's attacks and illusion, then badly wounded it as Xia You prepared to catch it.
• One of three women threw a stone that knocked Xia You's Poké Ball away, allowing Zoroark to flee into the forest.
• Xia You sent Gengar after Zoroark, and Gengar took the fallen Poké Ball with it.
• The three women demanded Gengar as well, and the black-haired woman introduced them as Pine Bamboo Plum.

Xia You defeated the Bandit Sisters and captured them after they tried to steal his Pokémon. While Cynthia searched their belongings, Xia You recognized three plates as the Mysterious Plates that came into being alongside Arceus, leaving the sisters stunned that he knew their secret.

• Xia You summoned Greninja and Monferno, and his Pokémon swiftly knocked out the Bandit Sisters’ Gengar, Abomasnow, and Toxicroak.
• Xia You used Charizard to stop the sisters from reaching their Pokémon, then bound them and questioned them.
• Cynthia took the sisters’ pouches and emptied them, revealing three unusual plates among their belongings.
• Xia You identified the plates as the Mysterious Plates that came into being alongside Arceus, and A Zhu demanded to know how he knew.

Xia You and Cynthia discovered that the Bandit Sisters had dug up three of Arceus’s Plates, and Xia You took the Plates, their money, and an empty Poké Ball after defeating them. The sisters stayed behind, but Morty vowed they would use an underhanded plan to get revenge and reclaim their belongings.

• Xia You identified the three Plates as Water-, Grass-, and Fire-type items, then offered to divide them with Cynthia, who refused to take any.
• Xia You claimed the Plates from Morty, A Zhu, and A Mei, while the sisters protested that they had dug them up themselves.
• Gengar returned with the weakened Zoroark captured in a Poké Ball, and Xia You and Cynthia left the bound sisters behind.
• Xia You returned to take the sisters’ money and an empty Poké Ball, then left again as they shouted after him.
• Morty stopped A Zhu and A Mei from pursuing Xia You, then vowed the sisters would strike when he let his guard down.

Xia You and Cynthia reached Wangbu, secured money and lodging, and spent several days exploring Hisui and training together. When the sky above Mt. Coronet turned crimson, they recognized that the crisis was unfolding and set out for the mountain.

• Xia You kept the three Plates and money taken from the Bandit Sisters after Cynthia refused them, and he and Cynthia reached Wangbu and learned about life in Hisui.
• Xia You and Cynthia stayed together at a hot spring guesthouse, where Cynthia reluctantly accepted the shared room and the proprietress's increasingly couple-like arrangements.
• Akari, Rei, Irida, and Adaman split up to address the space-time crisis, while Volo departed on undisclosed business; Akari's group later obtained the Red Chain and hurried toward Mt. Coronet after learning Kamado was there.
• Xia You trained Zoroark and battled Cynthia during their days in Wangbu, while the two explored the town and watched for developments at Mt. Coronet.
• After breakfast, Xia You and Cynthia saw the sky above Mt. Coronet turn crimson and decided to head for the mountain.

Akari defeated Kamado and reached the altar with the Red Chain, but Volo stole it and revealed his plan to summon Giratina and confront Arceus. Volo bound Dialga, Palkia, and Giratina with the chain, then blocked Akari and the others as they tried to stop him.

• Akari, Rei, and Irida reached Sinnoh Temple, joined Adaman, and confronted Kamado as the Space-Time Rift threatened to open.
• Akari defeated Kamado, who apologized and asked her to save Hisui; she then approached the altar with the Red Chain.
• A Space-Time Rift appeared, and Dialga and Palkia emerged and began fighting in the sky.
• Volo stole the Red Chain, revealed his plan to find Giratina and use Arceus's power, then summoned Giratina through the rift.
• Volo used the Red Chain to bind Dialga, Palkia, and Giratina, while his six Pokémon blocked the combined attacks from Akari, Rei, Adaman, and Irida.