Chapter Summaries

Yong identified the Wimpod’s treasure as a Waterium Z and recruited the determined Pokémon as a gift for his apprentice Qingcao. He and Cynthia continued toward Poni Island, wondering whether Mew had returned there.

• Yong recognized the crystal Wimpod had guarded as Waterium Z and put it away because he lacked a matching set.
• Yong offered Wimpod food and invited it to become Qingcao’s partner, hoping it would grow into a powerful Golisopod.
• Wimpod resolved to become stronger and entered Yong’s Poké Ball, becoming a gift for Qingcao’s journey.
• Yong recalled Rhyperior and continued toward Poni Island with Cynthia, Swampert, and Milotic while wondering whether Mew had returned.

Yong and Cynthia arrived on Poni Island, where Yong explained its sacred altar and the island’s history with Solgaleo, Lunala, and the Ultra Beasts. In Konikoni City, Olivia, Mallow, and Lana discussed Lusamine’s search for Yong and Cynthia and rumors about her plans.

• Yong and Cynthia landed on Poni Island and admired its wild scenery.
• Yong explained that Ultra Beasts avoided Poni Island because Solgaleo and Lunala guarded its ancient altar, and Cynthia questioned the Aether Foundation’s motives.
• Olivia relaxed at the Gem Shop with her Lycanroc until Mallow and Lana arrived.
• Mallow told Olivia that Lusamine was still searching for Yong and Cynthia and that rumors claimed she had sent the Ultra Recon Squad to pressure the Champions.
• Olivia told Mallow and Lana to stay safe and do what they ought to do, and they agreed.

Yong and Cynthia reached Poni Great Canyon after Yong defeated several Trainers with Bronzor, then discovered Alolan Diglett and Alolan Dugtrio near the entrance. They learned the Pokémon lived in the mountain’s iron-rich terrain and continued into the canyon.

• Yong defeated a Trainer’s Torkoal with Bronzor, impressing the campsite’s spectators.
• Yong and Cynthia discussed the joy of battling and how regional Trainers focused on different ways to increase power.
• Yong and Cynthia arrived at Poni Great Canyon and entered its winding mountain trail.
• Yong spotted Alolan Diglett and Alolan Dugtrio, and Cynthia registered them in her Pokémon Pokédex.
• Yong explained how iron-rich soil shaped the Diglett’s Steel typing, metal whiskers, and digging abilities.

Yong and Cynthia explored the rugged highlands, where they spotted a rare Jangmo-o leading a group of Pokémon in a fierce fight. Yong summoned Aerodactyl to take them down into the valley, eager to approach Jangmo-o and a Rockruff.

• Yong and Cynthia continued through the rocky highlands, observing Pokémon and discussing humans and Pokémon living together.
• Cynthia spotted Pokémon fighting on the valley floor, and Yong identified the two groups gathered around a Kangaskhan and an Alolan Pokémon.
• Yong and Cynthia recognized a rare Jangmo-o bravely facing Kangaskhan's charges.
• Yong took Cynthia's hand and summoned Aerodactyl so they could descend toward the Pokémon, especially the Rockruff.

Yong challenged Rockruff and caught him after Kleavor won their battle. Cynthia then asked Jangmo-o to become her partner.

• Jangmo-o, Kangaskhan, and Rockruff joined forces to face the newcomers, but Yong recalled Aerodactyl and assured them he meant no harm.
• Yong challenged Rockruff to battle, offering to make him his partner if he won, and discovered that Rockruff had the Steadfast Ability and strong Double Team skills.
• Rockruff attacked Kleavor with Double Team and Tackle, but Kleavor countered with Slash and defeated him.
• Yong caught Rockruff in a Pokémon Ball and thanked Kleavor for the battle.
• Cynthia approached Jangmo-o and asked him to become her partner.

Jangmo-o chose to join Cynthia after seeing Rockruff lose, and Cynthia caught him after Glaceon defeated him. The canyon Pokémon joined Kangaskhan’s group, while Yong and Cynthia flew toward a small island east of Poni Island to rest.

• Jangmo-o decided to join Cynthia, and Yong welcomed Rockruff as his new partner.
• Cynthia sent out Glaceon to battle Jangmo-o, who tried to endure her attacks with Iron Defense and Screech.
• Glaceon slowed Jangmo-o with Icy Wind and defeated him with Quick Attack, allowing Cynthia to catch him.
• Jangmo-o and Rockruff persuaded the Alolan Diglett, Alolan Geodude, and Alolan Graveler to join Kangaskhan’s group.
• Yong and Cynthia left supplies with Kangaskhan, then flew Aerodactyl toward a small island east of Poni Island to rest.

Yong and Cynthia trained Rockruff and Jangmo-o on an island near Ula'ula, then discussed their progress and continued their journey through the Alola Islands. They stopped to observe Komala, a Pokémon that seemed to remain asleep throughout its life.

• Rockruff and Jangmo-o exchanged attacks until Yong and Cynthia called a halt to their training.
• Cynthia praised Jangmo-o's improving energy gathering, while Yong promised Rockruff a new move after it mastered Rock Tomb.
• Yong and Cynthia headed to camp carrying their Pokémon on an island near Ula'ula Island and Mount Lanakila.
• Yong and Cynthia recalled exploring the islands, recording Alolan Pokémon and befriending an Alolan Raichu.
• Yong and Cynthia stopped to study Komala, which appeared to sleep constantly, even while eating, moving, or battling.

Yong and Cynthia camped in Komala’s territory and prepared dinner while their Pokémon played and guarded the island. After a prank led to a fight, Garchomp and Aggron fairly settled the dispute, leaving the Pokémon reconciled as friends.

• Yong and Cynthia returned to camp with Komala’s permission, and the companions prepared food and gathered supplies.
• Rockruff and Jangmo-o dropped an ice ball onto Komala’s head as Gliscor laughed, provoking Komala into a clumsy fight with Gliscor.
• Cynthia stopped Yong from intervening, and Garchomp and Aggron separated the fighters and summoned Rockruff, Jangmo-o, and Glaceon to account for their roles.
• Garchomp and Aggron ordered the Pokémon to apologize, then had the four pranksters build Komala a small tree house; Komala shared its honey, and everyone made up.

Molayne, Sophocles, and Acerola learned that multiple Ultra Beasts had appeared across Alola, including Guzzlord on Ula'ula Island. As Yong and Cynthia approached the coast, they spotted Guzzlord and another Ultra Beast emerging from a vortex, leaving the island facing an even greater crisis.

• Molayne, Sophocles, and Acerola discovered that Guzzlord had appeared near Malie City while other Ultra Beasts attacked Akala and Melemele Islands.
• Molayne ordered Sophocles to evacuate residents and prepared to confront Guzzlord with Acerola.
• A new danger signal appeared, and Molayne told Sophocles and Acerola that another Ultra Beast had appeared.
• Yong and Cynthia traveled toward Ula'ula Island's coast and saw people fleeing from Guzzlord as it devoured everything nearby.
• Yong and Cynthia spotted a vortex opening near the forest, with a massive creature made of stacked stones descending from it.

Guzzlord rampaged across Ula'ula Island as Molayne and Acerola attacked it while Sophocles organized an evacuation and prepared to hold off the second Ultra Beast. Their assault barely affected Guzzlord, which unleashed a devastating Dark Pulse and left Palossand lost from sight.

• Yong and Cynthia hurried toward Ula'ula Island's coast as Guzzlord tore through the terrain, while Molayne, Acerola, Sophocles, and the Ranger Team reached the coast and began evacuating residents.
• Acerola urged Molayne to focus on Guzzlord, and Molayne assigned Sophocles to delay the gray Ultra Beast if it emerged before they could defeat Guzzlord.
• Molayne and Acerola sent out their Pokémon and attacked Guzzlord, but it narrowly missed Molayne with Knock Off and endured Metagross's Meteor Mash and the ice storm from Froslass.
• Guzzlord inhaled the ice and snow, then unleashed a powerful Dark Pulse that devastated the beach and forest and hurled Palossand out of sight.

Molayne and Acerola were overwhelmed by Guzzlord until Cynthia and Shiyan Yong arrived to help. Yong's Swampert then dominated Guzzlord, leaving Molayne amazed by the Champions and curious about the Pokémon League.

• Guzzlord battered Molayne's Metagross and Acerola's Froslass, then prepared a devastating Dark Pulse against them.
• Sophocles refused to retreat until Cynthia arrived and told him that Shiyan Yong was there to help.
• Acerola protected Molayne from Guzzlord's attack, and Cynthia and Shiyan Yong's arrival reassured them.
• Shiyan Yong's Swampert confronted Guzzlord and overwhelmed it while his Aggron protected him.
• Molayne recognized the arrivals as Champions and became eager to learn more about the Pokémon League.

Yong faced the Ultra Beast Guzzlord and sent Swampert to battle it while Molayne and Acerola moved to help Sophocles deal with Stakataka. Swampert entered Primal Reversion and clashed Hydro Pump against Guzzlord’s Dark Pulse, leaving Yong to order a follow-up attack through the sea spray and water.

• Yong identified the level 78 Guzzlord and told Molayne and Acerola to leave it to him while they watched Stakataka.
• Molayne and Acerola recalled their unconscious Pokémon and rushed with Metagross to help Sophocles as Stakataka neared escape.
• Yong challenged Guzzlord to return to its own world if it lost, then sent Swampert to attack with Hydro Pump.
• Swampert entered Primal Reversion and blasted Hydro Pump at Guzzlord, which answered with Dark Pulse.
• The attacks collided and exploded, and Yong ordered Swampert to use Surf and Ice Beam.

Shiyan Yong and Swampert defeated Guzzlord, with Swampert reaching Lv82, and Yong captured the Ultra Beast in a Beast Ball. As another creature began emerging from the Ultra Wormhole, Acerola explained that they had to wait for an Ultra Beast to arrive before the unstable wormhole could be handled.

• Swampert turned Guzzlord's attack into a vortex, then froze it with Ice Beam and struck it with Ice Punch.
• Guzzlord collapsed unconscious, and Swampert gained training points, increased its move proficiencies, and reached Lv82.
• Shiyan Yong captured Guzzlord in a Beast Ball and turned toward another figure emerging from the Ultra Wormhole.
• Molayne praised Shiyan Yong for defeating Guzzlord, while Shiyan Yong said its straightforward attacks made it easy to counter.
• Acerola explained that destroying an unstable Ultra Wormhole would worsen the situation, so they had to wait for the Ultra Beast to arrive.
• The Ultra Wormhole trembled as another enormous creature neared its arrival.

Stakataka emerged from an Ultra Wormhole, and Yong decided to try to make the quiet Ultra Beast his Pokémon. After entrusting Guzzlord to Molayne, Yong approached Stakataka and began a cautious attempt to communicate with it.

• Stakataka fell from the opened Ultra Wormhole onto the beach and remained still, surprising Acerola with its calm temperament.
• Yong explained that Stakataka was gentle when undisturbed and asked Molayne and Acerola for permission to tame it as his Pokémon.
• Molayne and Acerola warned Yong that Ultra Beasts were dangerous and difficult to train, but Molayne agreed if Yong could prove he could handle Stakataka.
• Yong gave Molayne the Beast Ball containing Guzzlord and asked Cynthia to support him if Stakataka became violent.
• Yong approached Stakataka with Swampert and Aggron ready to protect him, and Stakataka opened an eye and regarded him with curiosity.

Yong learned that Stakataka had fled its home after Nihilego attacked it, then caught Stakataka in a Beast Ball and offered it a place with him. After meeting Lusamine, Olivia, and Guzma, Yong heard their thanks for helping protect Ula'ula Island and hinted that he had gained something from the incident.

• Yong used Great Matrix Heart to learn that Nihilego had attacked Stakataka and destroyed its home in Ultra Megalopolis.
• Yong offered Stakataka a temporary place with him, and Stakataka agreed to cooperate and avoid causing trouble.
• Yong caught Stakataka in a Beast Ball as Lusamine, Olivia, Guzma, and the others arrived at the beach.
• Guzma criticized Yong for acting without consulting those experienced with Ultra Beasts, while Olivia apologized for the islands' losses and public fear.
• Lusamine thanked Yong and his companion for helping Molayne and Acerola protect Ula'ula Island, and Yong said he had not come away empty-handed.

Yong, Cynthia, and Acerola left Lusamine and the others after Yong caught Stakataka, then traveled toward Mount Lanakila. They arrived at the foot of the sacred mountain, where Cynthia hoped to find an Alolan Vulpix.

• Cynthia asked Molayne whether Alolan Vulpix could be found on Mount Lanakila, and Acerola offered to guide her and Yong to the nearby ruins.
• Yong recalled Swampert and Aggron, then left with Cynthia and Acerola while Lusamine stayed behind to handle the cleanup.
• Olivia and Molayne departed, and Lusamine ordered Guzma to control his emotions before directing the island Ranger Team to restore the affected area.
• On the way to Mount Lanakila, Acerola thanked Yong and Cynthia for stopping Guzzlord and Stakataka, while Yong discussed helping Stakataka adjust to the world.
• Cynthia and Yong explained why Stakataka had remained calm, and Yong decided to keep the Ultra Beast by his side until it had adapted.
• Acerola led Yong and Cynthia down toward Mount Lanakila, whose snowy peak came into view as the air grew colder.

Yong and Cynthia left the camp at Mount Lanakila and climbed into the mountains, enjoying the scenery, watching Trainer battles, and setting up camp for the night. As they settled in, they heard rumors of a Goomy in a nearby valley and considered joining the search.

• Acerola told Yong and Cynthia she would report their help with Ula'ula Island's Ultra Beast crisis to the Alola Islands Pokémon League and said they might earn a guardian deity's recognition.
• Yong and Cynthia set out up Mount Lanakila, where Yong felt the mountain scenery gradually transforming his battle will.
• They explored the lower slopes, watched Trainers battle, and enjoyed their journey with Rockruff, Bronzor, and Glaceon.
• After half a day, Yong and Cynthia camped in a clearing and heard that someone had found signs of a Goomy in the nearby valley.
• Yong encouraged Cynthia to look for the Goomy, and they reminisced about her catching Jangmo-o.

Yong and Cynthia climbed into Mount Lanakila’s snowy upper reaches, admiring the mountain and searching for Alolan Vulpix. After learning that a Snorunt knew of none nearby, they turned back and flew from the summit with Aerodactyl.

• Yong and Cynthia crossed into Mount Lanakila’s frozen upper slopes, where Bronzor and Glaceon protected and guided them through the bitter winds.
• Yong spotted a Snorunt buried in the snow and asked whether it knew where to find Alolan Vulpix.
• Snorunt shook its head, and Yong concluded that the Alolan Vulpix were probably on the mountain’s sun-facing side.
• Cynthia reassured Yong that they had already gained plenty from the journey, including Jangmo-o, Rockruff, and Stakataka.
• Yong and Cynthia ended their climb and rode Aerodactyl down from the summit.

Yong and Cynthia returned to Akala Island after failing to find an Alolan Vulpix and decided to leave for home. As Olivia asked them to wait for a possible message from the Guard Deities, Tapu Lele suddenly attacked Yong, and Roserade intercepted the strike.

• Yong and Cynthia returned to Paniola Town, where Kiawe welcomed them and heard they had not found an Alolan Vulpix.
• Yong and Cynthia told Kiawe they planned to return home, and Kiawe led them to Olivia so they could thank her.
• Olivia thanked Yong and Cynthia for helping Ula'ula Island and asked them to stay in case the Guard Deities granted them Z-Move power.
• Tapu Lele appeared above the coastal camp and launched a psychic attack at Yong.
• Cynthia's Roserade blocked Tapu Lele's attack with Energy Ball, and Olivia tried to explain that Yong and Cynthia had helped stop Guzzlord and Stakataka.

Yong and Cynthia received Rock- and Water-type Z-Rings and Z-Crystals from Tapu Lele after Olivia vouched for them. They stayed in Paniola Town to learn Z-Moves from Kiawe and Lana.

• Yong offered to settle Tapu Lele’s surprise attack with a battle, but Olivia explained that he and Cynthia were trusted Trainers who had helped Ula'ula Island.
• Tapu Lele created two Z-Rings and matching Rock- and Water-type Z-Crystals, then praised Yong after he complimented the Guard Deity.
• Olivia gave the rings and crystals to Yong and Cynthia and explained how Z-Moves worked, while Kiawe and Lana offered to teach them.
• Olivia returned to overseeing reconstruction, and Kiawe and Lana accompanied Yong and Cynthia to Paniola Town.
• Yong and Cynthia postponed their return and began learning Z-Moves at Kiawe’s home.