Chapter Summaries

Xia You and Cynthia appeared at the summit just as Volo tried to seize Dialga, Giratina, and Palkia with the Red Chain. Xia You recalled Dialga with his Great Ball, then revealed that Dialga had been his Pokémon all along, leaving Volo shaken.

• Xia You and Cynthia emerged from hiding and confronted Volo as he attempted to claim the three bound Pokémon.
• Xia You used his Great Ball to recall Dialga from the Red Chain, stunning Akari, Calaba, Rei, and Volo.
• Xia You released Dialga beside him, and its obedient behavior convinced him it was his own Pokémon.
• Volo demanded to know how the Great Ball had overcome the Red Chain, and Xia You teased him by describing its ordinary store-bought features.
• Xia You suggested that Dialga had been his Pokémon from the beginning, leaving Volo facing an unexpected explanation.

Xia You revealed that Dialga was his Pokémon, while Volo used the Red Chain and Origin Evolution Stones to control Origin Forme Palkia and Giratina. With Akari and the others trying to seize the chain, Xia You asked Cynthia to fight beside him.

• Volo was shocked to learn Xia You had caught Dialga, then declared that its absence would not stop his plan.
• Volo used the Adamant Orb, Lustrous Orb, and Grand Griseous Orb to transform Palkia and Giratina into their Origin Formes and control them with the Red Chain.
• Volo ordered Origin Forme Palkia and Origin Forme Giratina to attack Xia You, Akari, and the others.
• Akari asked Xia You to hold off the two Pokémon while she and the others tried to take the Red Chain from Volo.
• Xia You asked Cynthia to fight alongside him, and she agreed.

Xia You and Cynthia Mega Evolved Charizard and Garchomp to fight Volo’s Origin Forme Giratina and Palkia, while Akari and the others battled Volo’s team. As the fight reached a stalemate, Gengar stole Volo’s Adamant Orb and returned to Xia You.

• Xia You Mega Evolved Charizard into Mega Charizard X, and Cynthia Mega Evolved Garchomp before sending them against the Origin Forme Pokémon.
• Mega Charizard X and Mega Garchomp joined Dialga in fighting Origin Forme Giratina and Palkia, while Akari and the others tried to break through Volo’s six Pokémon.
• The battle devastated the temple and toppled nine of the ten statues; Xia You recognized the surviving pillar as the origin of Spear Pillar’s name.
• Xia You noticed Cynthia’s excitement as she directed Mega Garchomp, then considered sending more Pokémon into the increasingly even fight.
• Gengar suddenly appeared beside Volo and stole the unused Adamant Orb instead of the Red Chain.
• Volo ordered his Pokémon to stop Gengar, but Akari and the others covered its retreat as it flew back to Xia You.

Xia You used the Adamant Orb to transform Dialga into its Origin Forme, helping his side defeat Volo’s forces and free Palkia and Giratina from the Red Chain’s control. After Volo collapsed and was captured, Xia You and Cynthia declined the chance to catch Palkia and Giratina, leaving the final step of restoring the sky ahead.

• Gengar dropped the Adamant Orb, and Xia You caught it from the air.
• Xia You used the Adamant Orb to transform Dialga into its Origin Forme, turning the battle against Volo’s Origin Forme Palkia and Origin Forme Giratina.
• Akari broke through Volo’s defensive line as Dialga, Mega Charizard, and Mega Garchomp overwhelmed Palkia and Giratina, while Volo’s other Pokémon fell.
• Volo’s Red Chain snapped as he tried to force more power from it, and he passed out; Palkia and Giratina returned to their original forms as Adaman tied Volo up.
• Xia You refused to catch Palkia and Giratina, and Cynthia also chose to leave them in legend and myth.
• Akari praised Xia You and Cynthia for their strength, and Xia You told her to do what she needed to do.

After Akari persuaded Palkia and Giratina to return through the Space-Time Rift, the Hisui group celebrated stopping Volo and returned to Jubilife Village. There, Cogita approached Xia You and Cynthia and offered to show them around, leaving Xia You suspicious that she wanted something from them.

• Akari asked Palkia and Giratina to stop fighting and return to their original spaces, and the two Pokémon flew into the Space-Time Rift.
• The Space-Time Rift closed, the red sky cleared, and Rei and Akari celebrated saving Hisui.
• Adaman thanked Xia You for helping stop Volo, while Irida praised Xia You and asked about Mega Evolution.
• Adaman tied up the unconscious Volo, and the group prepared to return to camp; Xia You and Cynthia quietly agreed not to hurry back to the future.
• After several days of travel, Xia You and Cynthia arrived in Jubilife Village, where residents welcomed Akari and Team Galactic took charge of Volo.
• Cogita visited Xia You and Cynthia and offered to show them around the village, prompting Xia You to suspect she had an ulterior request.

Xia You and Cynthia met Ingo, a Battle Subway manager from their future who had become a Pearl Clan Warden in Hisui, and learned he chose to remain there despite being offered a way home. After a village celebration, Cogita asked to travel with Xia You and Cynthia to the future, and said she would give them her final answer before they left.

• Cogita showed Xia You and Cynthia around Jubilife Village and introduced them to Ingo, who recognized Xia You from a future Battle Subway battle.
• Ingo explained that he had lost memories after arriving in Hisui and now served as a Pearl Clan Warden, while Xia You and Cynthia realized he came from their future.
• Cogita revealed she had hoped Xia You's Dialga could return Ingo to his original time, but Ingo chose to stay in Hisui and spread Pokémon battles there.
• Xia You offered to have Dialga visit Ingo every ten years and take him to the future if he changed his mind, which Ingo gratefully accepted.
• During Jubilife Village's celebration, Cogita asked Xia You and Cynthia to take her to the future, and Xia You urged her to consider the risks and practicalities before deciding.
• Cogita left after promising to give Xia You her final answer before they departed the next day.

Cogita agreed to travel with Xia You and Cynthia to the future, offering her treasure in exchange for his protection and support. The next morning, Dialga transported the three away from Jubilife Village after they said goodbye to Akari and the others.

• Cogita visited Xia You, confirmed she had decided to travel to the future, and brought gold to pay for the journey.
• Cogita insisted on making their arrangement a transaction and offered her treasure in exchange for Xia You supporting and protecting her in the future.
• Xia You and Cynthia said goodbye to Akari and the others, and they took photographs to remember one another.
• Cogita told Akari she would accompany Xia You and Cynthia, while Cynthia suspected Xia You and Cogita had kept a secret from her.
• Xia You released Dialga, and Dialga transported Xia You, Cynthia, and Cogita away as Akari called after them.

Xia You and his companions returned from Hisui to the present, reunited with Cheryl's group, and explained their journey through time. With Team Galactic defeated, everyone began making plans for the Grand Festival, the Lily of the Valley Conference, and their next destinations, while Xia You expected to meet Cynthia again soon.

• Xia You recalled Dialga in a Jubilife City park, called Cheryl, and arranged to meet her group at the Eterna Gym.
• Xia You, Cynthia, and Cogita traveled to Eterna City, where Xia You introduced Cogita and recounted their time in Hisui to Cheryl and the others.
• Gardenia told Xia You that Saturn and J had been handed to the International Police and Team Galactic's members had disappeared; Xia You declared Team Galactic disbanded.
• Xia You told the group to resume their plans, assigned Gardenia to look after the Gym and Old Chateau, and watched Cynthia, Shelly, and Courtney make their own arrangements.
• The next morning, Xia You, May, Cheryl, and Cogita set out for the Old Chateau while Cynthia parted from them at Eterna Forest and headed to Celestic Town.

Xia You brought Cogita to the Old Chateau and arranged for her to learn about the future while living there. Worried about her traveling alone, he assigned Gengar and Darkrai to protect her until she could manage independently.

• Xia You returned to the Old Chateau with Cogita, recalled Deoxys and Rayquaza, and introduced Cogita to the Ghost Girl.
• Xia You released his newly caught Hisuian Form Zoroark and examined three Plates, then Cogita admitted she had kept a Fairy Plate in Hisui.
• Cogita told Xia You she planned to study the future at the Mansion before exploring it, and revealed that she owned Enamorus.
• Xia You decided Cogita needed protection and asked Gengar to stay with her, while arranging for her to take Darkrai as well.
• Gengar protested that Xia You had assigned it to protect Cogita, and Xia You promised to bring it back before the Sinnoh League Conference.

Xia You, Cheryl, and May reached Lake Valor for Sinnoh’s Grand Festival, where May prepared to compete and reunited with Dawn, Ash, and their friends. The festival began with a difficult two-Pokémon performance round, and May and Dawn took the stage as contestants faced pressure to reach the top 32.

• Xia You, Cheryl, and May arrived at Lake Valor two days before the festival, and May registered after verifying her five Ribbon Medals.
• May trained alone while Xia You and Cheryl relaxed, then Ash, Dawn, and their group arrived the day before the festival and reunited with them.
• The Grand Festival began with 108 Coordinators divided across three stages, where contestants performed with two Pokémon and only 32 would advance.
• Ulala impressed the audience by evolving her two Eevee into Vaporeon and Flareon during her performance.
• Nando, Zoey, Jessie in disguise, and other Coordinators performed before Dawn and May took the stage.

May and Dawn advanced from the first-round Performance Evaluation, and Dawn defeated Ulala in the opening battle of the second round. May, Dawn, Zoey, Nando, and Jessie all reached the next stage, leaving sixteen contestants to compete for the Grand Festival victory the following day.

• May performed with Glaceon and Venusaur, combining ice sculptures with colorful petals and leaves to earn a high score.
• Dawn performed with Buneary and Cyndaquil, creating an ice roller coaster and a joint ice sculpture that won the audience’s cheers.
• The Giant Screen showed May in third place, Zoey in eleventh, Nando in thirteenth, Jessie in twentieth, Ulala in twenty-second, and Dawn in twenty-sixth among the advancing contestants.
• Dawn defeated Ulala by using Pachirisu’s electric current to strengthen Mamoswine’s Take Down, then encasing Pachirisu in ice to help knock out Ulala’s Pokémon.
• Nando, Zoey, May, and Jessie won their matches and advanced, joining Dawn among the sixteen qualifiers.
• After the competition, Xia You and Cheryl treated Dawn and the others to a meal, while May and Dawn remained focused on winning the championship.

May defeated Zoey in the semifinal, setting up a Grand Festival final against Dawn. The final began with both Coordinators sending out a Mythical Pokémon and a Starter Pokémon, and Xia You predicted May would win as the battle erupted.

• Dawn defeated Jessie and advanced to the final after Jessie battled with Seviper and James's Carnivine.
• May used Blaziken and Venusaur to defeat Zoey's Leafeon and Mismagius, eliminating Zoey from the semifinals.
• May and Dawn met in the final on the fifth day and began their Double Battle under a five-minute time limit.
• Dawn sent out Shaymin and Piplup while May sent out Manaphy and Blaziken, drawing cheers from the crowd.
• Cheryl asked Xia You who he thought would win, and he predicted May as the four Pokémon clashed.

May defeated Dawn in the Grand Festival finals and became a Top Coordinator, while Dawn accepted her loss with May's friendship and Xia You's support. After the group celebrated, Xia You said he would travel separately to take care of one last task before meeting them at the Lily of the Valley Conference.

• May shifted into an all-out offensive, overwhelming Dawn's team and driving Dawn's Appeal Points to the brink of defeat.
• May and Dawn launched their final attacks, and the resulting explosion left Shaymin and Piplup down as Dawn's Appeal Points ran out.
• Yas announced May's victory, and Contesta presented her with the Grand Festival trophy, making her a Top Coordinator.
• Xia You comforted Dawn and congratulated May, who embraced him as the others celebrated the finalists.
• At the restaurant, May told Dawn something that made her look surprised and shy, but neither girl explained it to the curious group.
• The next morning, Xia You said he would take care of an unfinished task alone while Cheryl and May traveled with Ash toward the conference venue.

Xia You returned to Kanto, visited Sabrina and Misty, then went to Cerulean Cave to catch Mewtwo. He began a fierce battle between Mewtwo and Deoxys, with the fight still underway as Charizard waited eagerly nearby.

• Xia You left his companions and flew from Sunyshore City to Saffron City, where he visited Sabrina before continuing north.
• Xia You stopped at Cerulean Gym, reunited with Misty and her sisters, and left after sharing lunch with them.
• Xia You entered Cerulean Cave and told Mewtwo he had come to catch it; Mewtwo accepted his challenge.
• Xia You had Gardevoir teleport them outside, then sent Deoxys to fight Mewtwo one-on-one.
• Deoxys changed into Attack Forme, and its clash with Mewtwo devastated the surrounding area while Charizard watched, eager to join.

Xia You had Deoxys and Charizard battle Mewtwo, then Mega Evolved Charizard Y so the pair could wear Mewtwo down. After Mewtwo briefly surged in strength and was overcome again, Xia You tried to catch it with a Great Ball, but Mewtwo immediately broke free.

• Deoxys and Mewtwo fought fiercely while Xia You watched and decided to send Charizard into the battle.
• Charizard joined Deoxys, forcing Mewtwo to face both Pokémon at once.
• Xia You Mega Evolved Charizard into Mega Charizard Y, and Charizard and Deoxys coordinated long-range attacks that pushed Mewtwo onto the defensive.
• Mewtwo unleashed a sudden surge of power and regained the advantage, but Xia You let his Pokémon continue fighting until they suppressed it and wore it down.
• Xia You threw a Great Ball at Mewtwo and drew it inside, but Mewtwo broke free almost immediately.

Xia You caught Mewtwo after wearing it down with repeated attacks, then convinced it to join him by promising stronger opponents and the chance to Mega Evolve. As Xia You left the area, he ran into Giselle, who recognized him and suspected he had caused the explosions.

• Xia You captured Mewtwo on his fourth attempt after Mega Charizard and Deoxys repeatedly attacked it whenever it broke free.
• Xia You released Mewtwo, introduced himself as its Trainer, and told it about Arceus, other powerful Pokémon, and Mewtwo’s two Mega Stones.
• Mewtwo showed interest in leaving its hiding place to face stronger opponents, and Xia You invited it to make its debut in an upcoming competition.
• Gardevoir, Deoxys, and Mewtwo sensed someone approaching, so Xia You recalled them and flew south with Charizard.
• Giselle stopped Xia You on her Pidgeot, said she had followed his career since he defeated her, and questioned him about the explosions.
• Xia You denied causing the noise, but Giselle suspected he was involved.

Giselle saw the devastation left by Xia You’s battle and realized how formidable he was, while Xia You went to Celadon City to surprise Erika and showed her that he had caught Mewtwo. He left Erika with Arceus’s Plates to turn into Pokémon accessories, then introduced Mewtwo to his team, which quickly learned how strong it was.

• Giselle exchanged contact information with Xia You, then flew to the battlefield and was shocked by the destruction there.
• Xia You flew to Celadon City and surprised Erika at the Celadon Gym greenhouse.
• Xia You showed Erika Mewtwo and gave her three Arceus Plates to have made into wearable accessories for Pokémon.
• Xia You and Erika spent the night together at the Gym.
• The next day, Xia You introduced Mewtwo to his Pokémon, and Mewtwo defeated several of his second-string Pokémon in a spar.

Xia You returned to Sinnoh after visiting Professor Cerise and arrived at Lily of the Valley Island ahead of the Conference. Three days before the tournament, he battled Ash in a practice match and defeated Pikachu with Monferno.

• Xia You visited Professor Cerise and his assistants in Vermilion City, then flew back to Sinnoh and rode Charizard to Lily of the Valley Island.
• Xia You registered for the Lily of the Valley Conference, returned his Athlete Village room key, and met Ash and their friends at a restaurant.
• Ash challenged Xia You to a practice battle, and Xia You agreed to use one of his Pokémon that still had room to develop.
• Ash sent out Pikachu, while Xia You chose Monferno; the Pokémon fought fiercely as Xia You let Monferno battle without commands.
• Xia You spotted an opening and ordered Monferno to finish the battle, defeating Pikachu and prompting Ash to admit they had lost.

Ash lost two of his three practice battles against Xia You and brought over Pokémon from his old lineup to prepare for the Lily of the Valley Conference. At the opening rally, Xia You discovered that Cynthia was the guest of honor, and the Conference began the next morning with Xia You facing an unfamiliar first-round opponent.

• Ash battled Xia You with Gliscor and Buizel, winning only with Buizel, then contacted Professor Oak to bring over Pokémon from his old lineup.
• Xia You trained for the Conference and spent his evenings exploring the Athlete Village with Cheryl, May, and Dawn.
• At the contestants' rally, Xia You spotted Tobias in the crowd and was surprised when Cynthia appeared as the Conference's guest of honor.
• Xia You sent Cynthia more than a hundred messages during her speech, and she later replied after the rally; he ignored her message.
• The Lily of the Valley Conference began, and Xia You learned that his first opponent was a school-aged boy and that none of the familiar contestants were in his group.

Xia You swept through his Lily of the Valley Conference preliminary matches and advanced to the Top 64. Tobias’s Darkrai dominated the other contestants’ attention, while President Charles Goodshow worried that Xia You would win another championship.

• Shunichi entered his first conference battle full of confidence, but Xia You’s Monferno defeated his Staravia, Hippowdon, and Grotle in a three-Pokémon sweep.
• Xia You returned to Cheryl, May, and Dawn, then won his second and third preliminary matches to qualify for the Main Tournament.
• Dawn and May wondered why Xia You’s preliminary opponents seemed so weak, while Ash also advanced despite losing some rounds along the way.
• The Top 64 was decided in one day, and Tobias drew attention by using Darkrai to sweep all nine battles across his three preliminary matches.
• President Charles Goodshow watched Xia You’s battles and worried that Xia You’s growing strength could bring him another championship.