She and Ash met before the series of events when Ash aided her in her time of need. She developed a strong crush on him from that day on and it became one of her most notable characteristics, evident through her blushing whenever she looks at, talks to or is amazed by him when battling. Serena is a beautiful, fair-skinned girl with waist-length honey blonde hair that is tied in a loose ponytail at the end with bangs hanging on the left side and light blue eyes.
Later on in the series, after losing her first Showcase, she cuts her hair. Serena marks a return to basing Ash's female companion off of that generation's female player character in the video games.
However, Serena is also the first to have undergone minor cosmetic changes for the transition to the anime, whereas May and Dawn remained the same.
Among the cosmetic changes are:. Starting from " A Showcase Debut! Her boots are mid-knee length, and have a strap of darker brown at the front. The rims of her soles are brown, while the soles of her boots are grey. There is no heel on her boots, and she wears this outfit wherever she goes, with the exception during pokemon showcases. When she was younger, she wore a pink dress, with Mary Jane shoes, and a straw hat tied by a light pink hatband, and ribbon.
For pajamas, she wears a lavender hoodie with pink heart insignias on the hips with dark-pink shorts, along with a red or pink bow. As of " A Frolicking Find in the Flowers! Serena is a very kind and polite girl, though she was rebellious and disobeyed her mother at the start of her journey. In addition to her kindness, she is very helpful and is always concerned about what her friends are doing, always trying her best to keep their spirits up.
She also has a passion for fashion and clothes, always searching for the prettiest and most stylish outfits to wear. As a result, she hates getting dirty and being soaked in mud. Much like May, Serena also adores trying out the various popular food spots in cities and towns, especially desserts.
However, unlike May, Serena is very modest and demure- at one point in the anime, she almost got injured when she chose to hold her skirt down while falling rather than making a safe landing. She also gets incredibly flustered and embarrassed very easily, especially when someone teases her about her not-so-secret crush on Ash. However, she eventually began to think that not having an established goal was a problem for her future as a Trainer.
Through her journey, Serena went through a great change in her personality. However, Serena sometimes blamed herself for problems that occurred or whenever she fought with her friends, despite everyone around her telling her that it was all right or assuring her that it wasn't her fault. She also has some skills in Rhyhorn racing due to her mother being a racer, because of the upbringing she possesses a unique charm when it comes to them and they nearly all gravitate towards her without question in doing anything.
Also, Serena knows how to lift people's spirits up whenever she sees anyone down. Serena has grown to be a great performer and dancer, shown in the showcases she entered. She became a good battler, as she watched Ash's battles for a long period, and got to be pretty good at fishing. Grace wanted Serena to be a Rhyhorn racer like her, but when she sees Serena's passion for performing, Grace begins to realise Serena wants differently and respects her daughter's decision to compete in showcases. Serena finds the clothes her mother picks for her unfashionable.
Despite this, Serena cares a lot for her mother, who admits that she saw a change in Serena on her journey and was proud of the person she became. Although they're close friends, Serena has strong feelings for Ash which started when they first met when they were little. Ash had helped her out after getting lost in the forest. She tripped and hurt herself when a Poliwag startled her, and Ash has used a handkerchief to dress her wound.
Ever since traveling with Ash as he asked her to join the group which she instantly accepted, Serena would blush whenever she was amazed by him, talked to him or when people talk about her crush. Also, Serena sometimes would warn Ash about something that might be dangerous and she has scolded him for his habits. Serena and Ash had only one fight but it wasn't entirely an argument as she was trying to help him snap out of his depression, after he lost his first attempt to get his last badge.
After their fight and during the search for him in a snowstorm, Serena temporally had doubts about Ash but she felt guilty even more as she believed she was responsible that her friend was out in the blizzard was because of their fight. When the snowstorm was over and her friend returned, Serena attempted to apologize to Ash for lashing back at him but he stop her as he not only gave her an apology for being so hard on her but also thanked her for helping him. Seeing how really sorry Ash was about their fight and hearing his thanks, Serena was able shake her doubts for her friend off and forgives him.
However, Serena didn't shake all her doubts for Ash off as she had some left in her but she still believed in him no matter what, shown throughout her friends rematch for his last badge. Serena put an end to her doubts for her friend once and for all, after Ash won his last badge.
Serena supports Ash all the way and looks up to him, which shows that she been influenced by him. Before leaving for her next adventure, Serena thanked and told Ash how glad she was that she came along with him as she tells him that he was the kind of person she wants to be. Also, Serena declares to Ash that she'll be an even more amazing lady for him when they meet again. However, Serena possibly gave Ash a kiss, which admitted her crush on him, and thanked him for everything he did for her before departing for her new journey.
Serena views Bonnie like a little sister due to both being girls. They are best friends and do a lot of girls stuff together. Serena sometimes stops Bonnie from asking girls to take care of Clemont when he's not around showing she can get annoyed with that habit. Serena would do anything to protect her from danger and would comfort her when needed. Bonnie knows that Serena has a crush on their friend Ash. They part ways when she decided to continue traveling while the latter stay in Kalos. She can get annoyed whenever his invention fails and when they blow up but is sometimes happy when his inventions work.
She would help him set up the table when they're having breaks or having a meal. She would help him cook sometimes as well. They both have a common admiration for Ash. Serena and Clemont part was when she left to continue make her dream a reality while he stay to continue running his Gym.
Serena and Mairin were able to hit it off right away when they first meet as they formed a close friendship. Like she is for Bonnie, Serena would do anything to keep Mairin safe from danger. Serena and Mairin even wished each other good luck before they left for their new adventures.
Serena and Miette didn't get off to a great start when they first met as they instantly became rivals. Also, Serena would sometimes freak out and blush a little bit whenever Miette appears or when she brings up her crush on Ash or when she interacts with him.
Despite being rivals, Serena and Shauna are close friends as they would do anything to help one another out. Shauna is aware of Serena's crush on Ash, shown when she accused her of liking him. Instantly when they first meet, Serena helped Nini see what she needed to fix in her performances and she has also has done the same for her.
Nini knows that Serena has a crush on Ash. However, Serena didn't know it was Aria when they first meet as she was using an alias name to get away from her fans and they even spent the day together which formed their friendship. Serena did realize that it was Aria that she met and became friends with, after seeing her do a familiar pose on TV that she saw when they were having a double battle. Serena took Aria's words of using her smile to give others strengths and happiness to the heart.
Despite already being friends, Serena and Aria formed a friendly rivalry, after Aria maintained the title as Kalos Queen. Serena would do anything to protect Braixen and she would do the same for her. They share the same interest as they enjoy shopping, looking good, dressing up, making sweets and like eating them.
After realizing that she should continue traveling, Serena had Braixen resume with her till the end. Serena cares a lot about Pancham and even described him as sweet despite his playful nature. Decided to continue traveling and grow on her own, Serena decided to have Pancham stay by her side. Serena has known Sylveon since she was an Eevee and she is also one of her partners.
When Serena first met Sylveon while she was an Eevee, she was impressed with her dance skills but Sylveon, as an Eevee, was very shy around her and others. Serena was able to gain Sylveon's trust and offer her a spot on her team in hopes of showing off her amazing dance skills which she accepted. Through their time together, Serena and Sylveon became very close with each other. One day, Serena was lost in the woods while trying to look for the rest of her group, resulting in herself getting wounded after getting startled by a Poliwag.
Since that day, Serena kept the handkerchief he used as a bandage as a way to remember the kind act and inspiring advice he gave her.
Years later, Serena was always woken up by her mother's Fletchling. Fletchling would use its beak to peck on Serena's head, then she would scream towards Fletchling in question and try to grab it. After that, Serena would be called by her mother to do morning training with her Rhyhorn. Later in the day, after the routine Rhyhorn practices, Serena and her mother were watching the news on TV about a Garchomp rampaging across Lumiose City. As they watched, they spotted a boy accompanied by a Pikachu and a Froakie climbing to the top of Prism Tower to calm it down.
When Garchomp was successfully calmed, the ground beneath the boy's Pikachu gave way and the boy jumped off the tower, making Serena gasp out of fear for his safety. Serena was relieved when he and his Pikachu were miraculously saved by a Mega Blaziken at the very last minute.
When the news cut to a shot of Ash and zoomed in closer so that the viewers could get a look at his face, Serena was stirred, believing it to possibly be Ash, though she referred to him as "that boy" as she didn't yet have any solid confirmation that it was him.
That next day, Serena was picking out a hat to go with her outfit. While choosing, Serena heard her mother knocking and invited her in. After that, Serena traveled to Santalune City to catch up with Ash. Serena reunites with Ash and meets Clemont, Bonnie and Dedenne for the first time. Once she arrived in Santalune City, Serena wonders how Ash will react when he sees her again after being apart for a few years and becomes filled with excitement as she could't hardly wait.
When she arrived at the Santalune Gym, Serena found Ash in the middle of a Gym Battle and was getting ready to approach him but Alexa notices her then ask if she can help her. Realizing that she shouldn't interrupt the battle, Serena decided to watch Ash instead as she asks Alexa if she can observe, which she said was fine. However, Serena became saddened when she witness Ash losing to Viola's Vivillon.
Serena was introduce to Ash's Pikachu and Fletchling then watches Ash train for his rematch against Viola. While Ash was taking a break from his training, Serena gave him a handkerchief to wipe himself off then she properly ask him if he remembers her.