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Mairin is a character appearing in Pokémon the Series: XY and XYZ and the Mega Evolution Specials.


Mairin is a short young girl with fair skin, orange eyes, and spiky maroon hair. She wears a slightly tomboyish outfit that consists of a yellow long-sleeved shirt, a small light green cloak with darker green edges, and long dark green pants with two light green triangles on the waist and lighter green cuffs. She also wears brown suspenders to keep her pants in place, along with gray socks paired with brown shoes. For accessories, she wears a yellowish-orange scarf tied with a matching ribbon, along with a small bracelet on her right wrist and a green hat with orange triangles and a small yellow pompom on top.


Mairin is a cheeky person, who always wants to experience adventure. Accompanied by her Chespin, Mairin tries to cheer Alain up at times, who usually dismisses her attempts. Mairin is, at times, confused, mixing that she can Mega Evolve, rather than her Pokémon. Mairin is also angry when Alain leaves her, but when he is in danger, she tries her best to protect him, even if it means at the cost of her life. After Alain brushed her off, claiming she is just a burden to him, Mairin is greatly depressed, especially after Chespie gets ill when it got affected by a strange green light.

Also it seems Mairin admires both Alain, even when he pushes her away or just tries to get away from her, and Serena due to their skills and confidences.


Mega Evolution Special

Mairin compliments Alain's battle.

Mairin is a Pokémon trainer and companion of Alain. She began her journey after receiving her Chespin, and soon discovered the Pokémon Trainer Alain while observing his battle against a Mega Absol. Intrigued by Alain's ability to Mega Evolve his Charizard, she decided to join him on his journey to battle every known Mega Evolved Pokémon. Despite Alain's requests to be left alone, Mairin stubbornly continued to follow him, insisting that he is the best way for her to learn about Mega Evolution. During their trip, Mairin saw a Flabébé she wanted to catch. Alain gave her tips how to catch it, causing Mairin to catch Flabébé. As Mairin went to the Pokémon Center to heal Flabébé, Alain dismissed her and went to a restaurant to meet the Elite Four, Siebold, to battle him. Mairin went to the restaurant and was angry Alain went off without her, but calmed down, seeing the famous Siebold. Despite their rocky relationship in the beginning, Alain and Mairin soon grew to trust and respect each other.[1]

Mairin notices Alain hurt his shoulder when he saved her.

When they met the Hoenn Champion Steven, Mairin watched as Alain battles him. The battle is interrupted by Lysandre, who came to show Steven a part of an ancient slab, which describes something about a megalith. They combined the stones at a temple, which revealed a path to an ancient ruin. There, they found the megalith and encountered Rayquaza for the first time. Alain, while trying to attack Mega Rayquaza, is injured while protecting Mairin from a Draco Meteor. Mairin began to fear Rayquaza and the risks Alain is taking to recover the megalith.[2]

Alain abandons Mairin, not wanting to see her getting hurt.

Mairin, at the Devon Corporation headquarters, begged Alain not to confront Kyogre and Groudon, but he refused, and attempted to abandon her in Hoenn to keep her safe. Despite her fear of the Legendary Pokémon, Mairin manages to sneak on board Steven's airplane and follow Alain. She watched as the Primal Groudon went and encountered Primal Kyogre, starting the ancient clash once more. When Alain is later knocked unconscious as he and his Charizard struggled to immobilize the two Legendary Pokémon, Mairin leapt from the plane and rushed to his side, dragging him to safety with the help of Steven's Metagross. He regained consciousness just as Rayquaza manages to break up the fight between Kyogre and Groudon. He is surprised to find Mairin had followed him, but their reunion is cut short when Lysandre's team arrives and captures the megalith, forcing Mega Rayquaza back into its natural form. Mairin and Alain returned to the Devon Corporation, where Alain then abandons Mairin once again, fearing for her safety if she were to remain with him. Mairin learns from Steven that Alain has returned to Kalos, and she stubbornly decides to follow him. Steven joins her and flies to Kalos with her, where Alain continues his efforts to become stronger.[3]

Mairin finds her Chespie glowing with a green light.

Arriving back at Kalos, Mairin and Steven contacted Professor Sycamore. Mairin asked Sycamore if he knew a trainer called Alain, saying she traveled together with him. Steven introduced himself to Professor Sycamore, who reported Alain went to Lysandre Labs. Mairin and Steven arrived at Lysandre Labs, where Lysandre welcomed them. They asked Lysandre where Alain was and were told Alain is having match against 10 trainers. Mairin went to cheer for Alain, while Steven discussed matters with Lysandre. After watching Alain defeating five Mega Evolution trainers, Mairin ran down with Chespie to the battlefield before the next battle began. Alain was not pleased Mairin was there, even if Mairin wanted to join Alain in more adventures, to learn more and grow stronger. Alain claimed he couldn't get stronger if she was around, which shocked Mairin and ran off with Chespie. Mairin was crushed and cried, so Chespie went off to leave Mairin alone for a while. After Mairin stopped crying, she went to find Chespie with two scientists. Chespie had a green glow around its body, so everyone took Chespie to the Pokémon Center. There, Mairin was joined by Sycamore and Lysandre, the latter promising he'll make certain to cure Chespie. Mairin grabbed Lysandre's coat and started crying. Alain heard of all of that and was angry, then went off, promising to find a way to cure Chespie and make Mairin smile again.[4]

Pokémon the Series: XY and XYZ

Mairin next to a still comatose Chespie.

Mairin was still seen at Lysandre Labs, still sitting next to the bed where Chespie lied while it was still comatose.[5] Mairin was shown in a video message to Alain, telling him that one of Chespie's spikes had moved the other day and that she was still hoping that Chespie would wake up soon.[6]

Mairin encounters Clemont's lost Chespin.

Mairin came with Lysandre to Lumiose City. Mairin was gazing at some amulets she wanted to buy for Chespie. Suddenly, Clemont's Chespin bumped into her. Seeing he got lost, Mairin thought of her Chespie and decided to look for his trainer. She soon encountered Tierno, Shauna, and Trevor, the latter realizing she was holding Clemont's Chespin. Soon, the group found the heroes, where Mairin returned Clemont's Chespin. Ash thanked Tierno, Shauna and Trevor, who showed Mairin had actually found Chespin. However, Mairin cried, remembering her Chespie, but seeing everyone looking at her, she stopped crying. At the Pokémon Center, Mairin explained she also had a Chespin, but was in a coma and could not wake up. However, she was glad Chespie was recovering in Lysandre labs. Just then, Sycamore arrived and was surprised to see Mairin. He thought Mairin came to support Alain, which made Mairin blush. However, she was wanted to meet up with him after the Kalos League Finals were to end. After hearing out Sycamore telling Ash about Greninja's transformation and spending more time with the heroes, Mairin walked out the Pokémon Center. Serena, Bonnie and Chespin accompanied Mairin, who decided to go back to her hotel, as Lysandre was waiting for her. Mairin thanked Chespin for having a good time, who fell down, making Mairin note he is just like her. Mairin promised to Bonnie to meet up and have their Chespin play together and bid her friends farewell. She soon found Lysandre and was ecstatic to hear Alain would gather the Mega Evolution energy needed to cure her Chespie the next day. On the day of the Kalos League finals, Mairin was with Lysandre, as they saw Alain and Ash walking to the battlefield.[7]

Mairin watches Alain battling Ash in the finals, while Lysandre is talking.

Mairin watched the battle between Alain and Ash, wishing the former good luck. She also noted how Alain was smiling during the battle and was saddened when his Metagross was defeated.[8] Mairin was cheering for Alain and hoped his Mega Charizard would win the final battle. Mairin saw Alain smiling, which made her glad. In the end, once Alain won the match, Mairin cried out of happiness. She turned to Lysandre, who was gone.[9] Mairin fled from the stadium and was near a building when Ash and Alain found her. However, roots spouted out, blocking Ash and Alain from meeting up with her. Mairin fled and saw Lysandre's broadcast, who announced he'd form a beautiful world by destroying the old one. After watching the broadcast, Mairin came to realize that Lysandre wasn't being entirely honest about helping Chespie and began questioning why he would do such a horrible thing. She soon faced a Team Flare grunt, who wanted to take her away to Lysandre. Mairin refused and was saved by Professor Sycamore. Sycamore's Garchomp protected her and Sycamore, as they fled away from the grunt. Mairin thanked Sycamore and reported Ash and Alain ran towards the Prism Tower. Mairin also reminded Sycamore about Lysandre's broadcast and was told Sycamore wanted to uncover the truth.[10]

Team Rocket telling Mairin to get Chespie.

Mairin came with Professor Sycamore to Prism Tower, where the latter had Mega Garchomp stop Aliana's Druddigon's attack. Mairin asked about Ash and Alain, who have not arrived to the tower yet. Serena assured Mairin they were fine, but Mairin was concerned about Chespie, who was still at the Lysandre Labs. Serena decided to help Mairin retrieve Chespie, and Sycamore decided to join in as well, promising to take them in his car. Aliana and Bryony attacked them and as the group went away, so they both thought Celosia would take care of them. As Mairin, Sycamore and Serena ran, Team Rocket, as reporters, approached them, offering them help. Thus, the group flew in the helicopter towards the Lysandre Labs, where Mable had Celosia take care of "the problem".[11] The helicopter was attacked by Mable's Weavile, who fired Ice Shard. Serena's Braixen retaliated with Flamethrower, after which, Mairin noted how amazing Serena was. Just as Weavile hit the helicopter with Icy Wind, Steven arrived on his Mega Metagross and saved the group. Thus, Sycamore, Serena, Mairin and Team Rocket ran through the halls, though the latter faced Celosia. Eventually, they found Chespie and Steven rescued them with his Mega Metagross from the Team Flare grunts.[12]

Mairin and Serena with Chespie.

With Chespie being retrieved, the group went to the room, where the megalith was stored. Steven tried to analyze data, but the glass shattered; Chespie was taken away by force and absorbed into the megalith, which twisted its appearance. Mairin was shocked and tried to rescue Chespie, but everyone went out of the Lysandre Labs, which was soon demolished. Steven concluded that Chespie absorbed Zygarde's energy and was absorbed into the megalith itself. As they tracked the megalith, Mairin and Serena were glad Ash, Alain and the rest have came to stop the megalith as well. Ash and Alain promised to rescue Chespie, which made Mairin delighted to hear that, as Serena protected her and Bonnie.[13] Mairin watched as the group fought against the megalith. Since the megalith sprouted plants to attack, Serena had her Pokémon attack the plants to protect herself and Mairin. Just as a vine went to attack Mairin, it stopped, as Alain and Ash rescued Chespie. Mairin was grateful and thankful Chespie was retrieved, then watched as Lysandre continued attacking. Once the Zygarde fused and defeated Lysandre, Chespie woke up, which made Mairin very happy. Alain apologized to her for the trouble they caused, but Mairin was grateful to Alain and told him not to worry about.[14]

Mairin and Serena wishing each other good luck.

Mairin was preparing a party for Alain, but failed. The heroes helped her out with baking the cake, preparing decorations and setting the table. Once Alain arrived, Mairin welcomed Alain and ate some cake. After Team Rocket arrived, she watched as Ash and Alain worked together to defeat them and rescue Ash's Pikachu. The next day, she, Chespie and others were rewarded with a medal for their contributions in the fight against the Megalith.[15] Mairin came to the event with Alain, where Serena, Shauna and Jesilee performed. Mairin started dancing with Chespie and was happy about it.[16] Alain, Mairin and Sycamore came to Ash and his friends. Alain and Mairin explained they were going to Frost Cavern, as there were sources of Mega Evolution energies. Mairin thanked Serena for the assistance during the Kalos League. Mairin and Alain bid farewell to the heroes and were last seen in the Frost Cavern.[17]


On hand

Mairin's first captured Pokémon, Bébé, is a Flabébé of yellow coloration and was caught under Alain's guidance.


Mairin found Chespin lost on the streets. With the help of Shauna, Trevor and Tierno, Mairin returned Chespin she befriended to Clemont.