Chapter Summaries

Chen Shi entered the World Tree Mystery Realm with Mew and the others to purify the dark matter infecting the World Tree. His psychic power began turning the tree and the surrounding landscape green, but the purification drained him as the chapter ended.

• Chen Shi rejected Mew's suggestion that he have a child with this world's Cynthia and insisted they find and purify the World Tree.
• Mew brought Chen Shi to a dark forest and located the entrance to the World Tree Mystery Realm with help from the parallel world's Mew and Mewtwo.
• Chen Shi entered the mystery realm with the others and saw the enormous World Tree as a swarm of Shadow Pokémon attacked them.
• Chen Shi discovered that the World Tree's dark matter was unusually advanced and resisted his initial psychic power.
• Chen Shi poured his strength into the World Tree, causing green to spread through it and the surrounding realm as he grew exhausted.

After Chen Shi exhausted himself purifying the World Tree, Mew Number Two explained that the tree held immense divine standing and that its destruction would doom all life. Mewtwo revealed that Mew’s abilities came from the World Tree, leaving Chen Shi to grasp why everyone had to protect it.

• Chen Shi finished purifying most of the World Tree, but Little V could no longer recharge him, and he collapsed from exhaustion.
• Mew teased Chen Shi about being weak, then unusually flew off to Mewtwo instead of continuing their argument.
• Chen Shi warned Mew Number Two to be careful of the World Tree’s abnormal dark matter, and Mew Number Two said the tree’s divine standing had made the dark matter difficult to purify.
• Mew Number Two explained that destroying the World Tree would eventually cause all life to die, while Mewtwo warned the consequences could be even worse.
• Mewtwo told Chen Shi that Mew’s powers came from the World Tree and that Mew had been chosen as its messenger, clarifying why the tree mattered so greatly.

After five days purifying Shadow Pokémon in Kanto, Chen Shi decided to return home, but Eternatus gave him part of his Origin Source as a parting gift and asked him to destroy the source of Dark Matter. Chen Shi accepted the gift and promised to carry out Eternatus's request.

• Chen Shi’s Psychic power surpassed Jirachi’s, but after five days of purifying Shadow Pokémon, he had cleared less than a tenth of Kanto and decided to leave.
• Eternatus told Chen Shi to find Celebi for the coordinates back to his world and offered him a parting gift.
• Eternatus separated part of his Origin Source into a bead, losing a tier of strength, and explained that it could be nourished to become another Dynamax Source.
• Eternatus revealed his anger at Dark Matter and asked Chen Shi to find its source and smash it to pieces.
• Chen Shi accepted the purple bead and promised Eternatus he would destroy the source of Dark Matter.

Cogita urged Chen Shi to complete the World Tree Guardian ritual after revealing that the Parallel World’s World Tree had been under dark matter invasion longer than anyone realized. She charged and modified Chen Shi’s Origin Orb, leaving him with a bracelet that let him use it directly.

• Cogita greeted Chen Shi when he returned and told him to hurry to the World Tree Mystery Realm and complete the Guardian ritual.
• Cogita explained that dark matter had been invading the Parallel World’s World Tree for about six months, two months longer than previously believed.
• Chen Shi questioned why Mew had not noticed the invasion earlier, but Cogita postponed discussing the discrepancy and repeated her warning.
• Cogita took Chen Shi’s Origin Orb, charged it with Dragon-type and Poison-type energy, and fashioned a bracelet to hold it.
• Chen Shi accepted the modified Origin Orb bracelet and admired Cogita’s taste.

Chen Shi teased Mew about becoming the World Tree Guardian, prompting Mew to threaten him with embarrassing photos until he agreed to talk. Chen Shi reassured Mew that he would honor his promise to protect the World Tree.

• Mew urged Chen Shi to complete the ritual to become the World Tree Guardian, but Chen Shi pretended not to remember their agreement and asked for Mew’s collection as payment.
• Mew displayed embarrassing photos of Chen Shi with Cynthia and Cogita, threatening to show them to his world’s Cynthia unless he agreed to become the guardian.
• Chen Shi chased Mew while Jirachi, Victini, Hoopa Confined, and Celebi watched; Little V went home, and Hoopa and Jirachi stayed to enjoy the spectacle.
• Chen Shi gave up chasing Mew and insisted that he had no relationship with the parallel-world Cynthia, despite how the photos could be misunderstood.
• Mew accused Chen Shi of breaking their original bargain, and Chen Shi explained that he had only been teasing it and would not joke about the World Tree’s safety.

Chen Shi returned from a parallel world and told Steven, Professor Oak, and the others how dark matter had nearly wiped out its population. He left them shaken by the threat and the speed of its spread.

• Chen Shi returned home, where Little V had already revealed his arrival to the family.
• Professor Oak asked Chen Shi whether he had learned how to deal with dark matter in the parallel world.
• Chen Shi explained that the parallel world's Steven and Cynthia were Champions, but the survivors had to hide underground and often lacked food.
• Chen Shi said only about twenty thousand humans and fifty thousand Pokémon remained in a world overrun by dark matter.
• Chen Shi described how dark matter had devastated the world in four months, including corrupting Ho-Oh and forcing Eternatus to kill it.
• Steven, Professor Oak, Cynthia, and the others fell silent, wondering whether their world could withstand dark matter.

Chen Shi reassured his family and friends about the dark matter threatening their world, then revealed that he had been chosen as its Savior. Cynthia became nearly certain that Arceus’s regard for Chen Shi confirmed his extraordinary importance.

• Chen Shi comforted Grandma Chen, served dinner, and urged everyone to eat despite their fear of the dark matter.
• Professor Oak asked about research into dark matter, and Chen Shi said researchers had found no useful solution and urged his teacher not to overwork himself.
• Chen Shi revealed that he was the chosen Savior, and Cynthia explained why she believed his achievements and strength made him the only possible candidate.
• Steven accepted that Chen Shi was the Savior and resolved to train harder so he could help his friend.
• Cynthia asked whether her lookalike visitor was Arceus, and Chen Shi confirmed that she had been Arceus’s Human Avatar.

Chen Shi tried to trigger Florges's Bond Phenomenon and learned that he needed to connect with her most precious memories. After reliving how Florges's rescued Trainer brought color and flowers into her life, Chen Shi prepared to channel his psychic power into their bond.

• Chen Shi brought Florges to the training grounds and tried channeling psychic power through their bond, but she only felt less hungry.
• Cynthia stopped Steven from interrupting Chen Shi when she noticed a faint white light around him.
• A voice told Chen Shi to experience Florges's most precious memories and strengthen the bond they shared.
• Chen Shi relived Florges's memories of being rescued from Pokémon Hunters and traveling with the Trainer who cared for her.
• Chen Shi witnessed Florges's happiness as her Trainer built her a garden, and realized that her constant watering expressed her love for him.
• The being urged Chen Shi to channel his psychic power into the present-day Florges and let the flowers watered with love bloom.

Chen Shi awakened Florges’s bond phenomenon and successfully used Cogita’s Bracelet to Dynamax Charizard at the Chen Family Farm. The huge Pokémon damaged the family home, leaving Chen Shi and Charizard apologizing to Grandma Chen while the town celebrated the breakthrough.

• Chen Shi’s power triggered Florges’s bond phenomenon, and she emerged in a flower-adorned form that impressed Steven and Cynthia.
• Metagross and Charizard both asked Chen Shi for the bond phenomenon, but he told them he would try another experiment first.
• Chen Shi used Cogita’s Bracelet to Dynamax Charizard, causing the Poké Ball to grow and a vortex to form above the farm.
• Verdant Town residents recognized Dynamax and cheered, assuming Chen Shi had made it possible in Hoenn.
• Dynamax Charizard crushed the walls around the Chen family home, so Chen Shi and Charizard apologized to Grandma Chen until she let them off.

Chen Shi learned that Yuko wanted to compete for a place in the Hoenn League Elite Four and offered to help her prepare. Yuko asked Chen Shi and Grandpa Chen to watch her compete, leaving her goal and their response unresolved.

• Chen Shi relaxed in the garden with Dragapult while his other Pokémon trained, played, and helped around the house.
• Grandpa Chen told Chen Shi that Elite King Mura planned to retire and that the Hoenn League would train candidates to choose his successor.
• Yuko told Chen Shi she wanted to join the Elite Four, despite the hardships she had faced and the limited resources available to her.
• Chen Shi offered to train or support Yuko's Pokémon, but she clarified that she only wanted him and Grandpa Chen to watch her compete.

Yuko asked Chen Shi and Grandpa Chen to witness her victory, and Chen Shi gave her stones and a bracelet to help her prepare for the Elite King competition. Mew returned with valuable Legendary Pokémon parts as payment for making Chen Shi the World Tree Guardian, but Chen Shi refused the gift and told Mew to take it back.

• Yuko told Chen Shi that she planned to defeat Pheobe and secure an Elite King seat, and asked him and Grandpa Chen to come see her win.
• Chen Shi and Grandpa Chen encouraged Yuko, and Chen Shi gave her a Key Stone, a Mega Stone, a Psychium Z, and a Z-Ring.
• After Grandpa Chen took Yuko away, Chen Shi sensed Mew returning and teased it for hiding nearby.
• Mew presented Chen Shi with around thirty or forty valuable parts from Legendary Pokémon, claiming it was giving them to him out of charity.
• Chen Shi gathered the parts, then pushed them back to Mew and reminded it that he had already been paid to become the World Tree Guardian.

Chen Shi agreed to accompany Mew to the World Tree Mystery Realm and complete the ritual that would make him its Guardian. He brought Steven and Cynthia along, and the group arrived at the thriving realm, where Chen Shi inspected the World Tree and found nothing wrong.

• Mew recovered its treasured items and urged Chen Shi to visit the World Tree Mystery Realm soon.
• Chen Shi agreed to go immediately and promised Mew they would vacation in the Galar Region afterward.
• Steven asked to join Chen Shi, and Cynthia came along as well.
• Mew teleported Chen Shi, Steven, and Cynthia to a forest and opened a passage into the World Tree Mystery Realm.
• Chen Shi, Steven, and Cynthia entered the realm and marveled at the enormous World Tree and its beautiful, lively surroundings.
• Chen Shi checked the World Tree for problems, found none, and said they should complete the ritual.

Chen Shi completed the World Tree Guardian ritual, causing the World Tree to shower the world in life-giving rain. He gained a bond with the World Tree, while Mew celebrated its newfound ability to resist dark matter.

• Mew led Chen Shi, Steven, and Cynthia inside the World Tree and began the ritual as Pokémon gathered outside.
• The World Tree raised Chen Shi on a green throne, pierced his fingertip, and gathered energy as the Pokémon danced around it.
• Mew used green liquid to draw a flame between Chen Shi’s eyebrows, completing the ritual and strengthening the Pokémon and their partners.
• Life-giving rain spread across the world, and Xerneas told Mewtwo that the World Tree was celebrating Chen Shi’s arrival as its guardian.
• Mew explained that Chen Shi and the World Tree could share power, then eagerly prepared to send him back so he could bask in the sun.

Chen Shi agreed to travel to the Galar Region with Steven and Cynthia, but Mew first introduced him to the mystery realm’s five guardian beasts, who were now under his command. Chen Shi identified the rare Pokémon for Steven and Cynthia, ending with the introduction of Ogerpon.

• Steven persuaded Chen Shi to visit the Galar Region, and Cynthia joined after mentioning Leon’s invitation.
• Mew led Chen Shi, Steven, and Cynthia out of the World Tree to meet the five guardian beasts.
• Mew told the five Pokémon that Chen Shi would command them, and they bowed respectfully to him.
• Chen Shi introduced Regirock and Urshifu, then revealed that the silver Pokémon was the Steel-type mythical Pokémon Melmetal.
• Chen Shi identified the yellow Pokémon as Zeraora and the small green Pokémon as Wellspring Mask Ogerpon.

Chen Shi introduced Ogerpon to Cynthia and Steven, explaining its masks and powerful Ivy Cudgel. After learning how Mew had rescued Ogerpon, he gave it and the other Pokémon treats and asked Ogerpon to protect the World Tree, leaving it deeply moved by his kindness.

• Chen Shi explained that Ogerpon could change its typing with four masks and that its Ivy Cudgel could land repeated critical hits.
• Mew recalled finding Ogerpon after three Pokémon had killed its Trainer and stolen its masks, then helping it get revenge and bringing it to the World Tree Mystery Realm.
• Chen Shi decided Ogerpon should remain in the World Tree Mystery Realm to guard it rather than go with him.
• Chen Shi gave Ogerpon and the other Pokémon Pokéblocks, and promised to bring Ogerpon more treats each month.
• Ogerpon offered Chen Shi three masks in gratitude, but Chen Shi refused them and asked Ogerpon to use them to protect the World Tree.

Chen Shi arrived in the Galar Region with Steven and Cynthia, and Leon told him about the Dragon-type Pokémon den at the Lake of Outrage. After learning where the den was, Chen Shi decided to visit it secretly with Dreepy that night.

• Chen Shi, Steven, and Cynthia arrived at Motostoke Airport, where Leon welcomed them and took them to the Shy Bag for a meal.
• Chen Shi asked Leon about a den with many Dragapult, and Leon explained that its Dragon-type Pokémon had fled two years earlier and now drove people away.
• Chen Shi privately recognized that the Pokémon had been searching for their missing son, Dreepy, who remained in his shadow.
• Chen Shi claimed he wanted to study wild Dynamax Pokémon, while Steven and Cynthia eyed him suspiciously.
• Leon told Chen Shi that the den was on an island in the Lake of Outrage, northwest of Motostoke.
• Chen Shi decided to teleport to the den with Dreepy that night so Steven, Cynthia, and Leon would not discover the truth.

Chen Shi took Dreepy to Dragon Island to reunite him with his long-lost mother, revealing that his story about Dreepy hatching from a rock had been a lie. Dreepy’s mother recognized him and embraced him, while the island’s Pokémon surrounded Chen Shi before she stopped them and realized he had cared for her son.

• Chen Shi woke Dreepy and told him they were going to meet his mother, leaving Dreepy stunned because he had believed he sprang from a rock.
• Chen Shi teleported with Dreepy to Dragon Island, where Dreepy’s mother sensed powerful Psychic energy and sounded an alarm.
• Chen Shi showed Dreepy to the island’s leader, who recognized the bloodline in him and knew he was her missing son despite his yellow coloring.
• Dreepy realized Chen Shi had lied to him, but greeted his mother, who cried and embraced him.
• Dragon-type Pokémon surrounded Chen Shi, but Dreepy’s mother stopped them and concluded that he had rescued and raised her son.

Dragon Mom urged Dreepy to stay on Dragon Island, but the other Dragapult's disdain for his unusual coloration made him refuse. When Chen Shi saw how they treated Dreepy, he attacked a Champion-level Dragapult and prepared to fight the group.

• Dragon Mom was shocked by Dreepy's strength and hoped he would stay on Dragon Island and eventually take over as leader.
• Dreepy rejected his mother's offer, saying the other Dragapult looked down on him because of his unusual coloration.
• Chen Shi noticed the group's disdain and confronted them for rejecting their leader's son.
• After a Champion-level Dragapult snorted at him, Chen Shi struck it into a crater.
• The Dragon-type Pokémon charged at Chen Shi, who resolved to force them to accept Dreepy through strength.

After Chen Shi and Dreepy returned from Dragon Island, Chen Shi tried to justify publicizing Dreepy’s humiliating past by recasting it as the start of a future legend. Dreepy escaped to the Distortion World with Pokéblocks for Giratina, while Chen Shi laughed at how easily he had talked his Pokémon into dropping the matter.

• Chen Shi asked Dragapult whether he had enjoyed watching him defeat Dragon Island’s adult Dragon-types, and Dreepy left after silently acknowledging Dragon Mom’s plea for a future visit.
• Dreepy confronted Chen Shi about spreading his embarrassing past, but Chen Shi argued that they were a team and that Dreepy’s struggles were part of his path to greatness.
• Chen Shi declared that Dreepy would become the Netherworld Lord and began inventing a legend about his origins, prompting Dreepy to beg him to stop.
• Dreepy dropped the demand for an explanation, went to his nest, and ignored Chen Shi’s good-night wishes as the Pokémon in their Poké Balls realized Chen Shi’s persuasive skills had grown.
• Dreepy opened a portal to the Distortion World, took Pokéblocks from Chen Shi’s backpack for Giratina, and left while Chen Shi burst out laughing.

Chen Shi woke up after Steven tricked him, then set out with his friends to find Max Mushrooms for Charizard’s soup. Leon recommended the forest outside Stow-on-Side, though he also offered to arrange a purchase.

• Togekiss let Steven, Cynthia, and Leon into Chen Shi’s room after Chen Shi refused to wake up.
• Steven claimed Chen Shi’s daughter was about to be born, jolting Chen Shi out of bed before he realized it was a prank.
• Mew tried to provoke Cynthia by mentioning a parallel-world Cynthia, but Cynthia said she trusted Chen Shi and refused to be baited.
• Chen Shi finished getting ready, recalled Togekiss, and left with Steven, Cynthia, Leon, and Mew to look for Max Mushrooms for Charizard.
• Leon recommended searching the forest outside Stow-on-Side and offered to contact someone who could sell Chen Shi Max Mushrooms.