In A Blustery Santalune Gym Battle!, Fennekin woke up with Serena at a Pokémon Center and enjoyed a large breakfast with her. Fennekin mimicked Serena's actions during their breakfast by stretching as the same time she did. Later in the same episode, it was introduced to Ash, Pikachu, Clemont, and Bonnie and greeted them happily.
In Grooming Furfrou!, Serena left it with what she thought were Pokémon Stylists so it could be groomed. Unfortunately, the "Pokémon Stylists" turned out to be Team Rocket, who were running a scam to steal Pokémon. When Serena saw the "Pokémon Stylists" on a wanted poster, she rushed to rescue Fennekin, and did so with the help of Ash, Pikachu, Jessica and her Furfrou.
In Clemont's Got a Secret!, Fennekin was sent out to battle a Magneton owned by Clemont that was patrolling the Lumiose Gym under orders of Clembot, the robot that had usurped the Gym from Clemont. However, Magneton dodged its Ember attack by separating into three units, but the group was saved by Ash, Pikachu, and Froakie before it could attack Fennekin.
Personality and characteristics
Fennekin has been shown to take after its Trainer. In A Blustery Santalune Gym Battle!, it mimicked Serena when she stretched out. Fennekin takes pride in its appearance, and becomes upset when its fur or tail become mussed or dirty. In The Bamboozling Forest!, it thanked Froakie for cleaning its tail with the Frubbles on the Water-type's back, and in XY021, it hesitated to escape from Team Rocket because of a muddy puddle that blocked its path. It changed its mind once it saw its trainer start running across the puddle to its side.
Fennekin is shown to have a bit of a temper, and gets angry quickly without really thinking twice, as shown in XY021, when Fennekin continuously tried to hit Pikachu with its Ember attack. It was also shown to be easily jealous in XY021 as well, becoming jealous of Elle's Fennekin's performance on PokéVision, and when Ash complimented the performance.