In the games
In the anime
The Aspertia Gym made an appearance in There's a New Gym Leader in Town!. Ash battled Cheren's Herdier with his Oshawott, but eventually lost.
The Gym also operates as a school dedicated exclusively to the education of aspiring Pokémon Trainers. The Gym is a tall building with a central tower, and the outside includes a place for the students to play. Inside, there are many classrooms and corridors in between. The school consists of a library, where students can learn about Pokémon from regions outside of Unova using the numerous books and computers, a swimming pool, a kitchen with dining tables and a room where announcements can be broadcast all around the grounds. Outdoor field projects are held to study wild Pokémon so that students can become familiar with and eventually catch their own Pokémon.
The school also raises and keeps Pokémon in a Pokémon House, which allow students to interact with various Pokémon. The Pokémon House is a large glass-caged structure with a forest-like environment inside. Behind the Pokémon House includes a large area with trees, flowers and a fountain.
The Gym's battlefield looks like an ordinary schoolyard but is yet to be completed. However, it is finished enough for Ash and Cheren to conduct an exhibition match.
Pokémon used in Gym
In the manga
In the Pokémon Adventures manga
Aspertia Gym in Pokémon Adventures
Two years after the events of Black & White chapter, Cheren was shown to have become the new teacher of the Aspertia Trainers' School. He teaches Class 75, which consists of 150 students from all across the Unova region, including Lack-Two, Whi-Two, and Hugh.
The Aspertia Gym itself made its first appearance in a flashback in PS531, depicting events that had taken place in Aspertia City five years earlier. Hugh first entered the Gym to look for the runaway Purrloin he had planned to give to his sister for her birthday. Although he assumed there was a Gym Leader there to help him capture Purrloin, Hugh's grandfather revealed that since Aspertia City is such a rural area, the Gym was currently empty as not many candidates have come to take it over.
In PS530, Cheren encountered Brycen during his class's field trip to Pokéstar Studios, and the former Gym Leader of Icirrus City suggested Cheren that he could become the new Gym Leader of Aspertia City's Gym.
In the TCG
- The Aspertia Gym is the only Gym in the games to be located outside.
- The Aspertia Gym is the only Gym to replace another Gym that has previously appeared in the series; it replaces the Nacrene Gym.
- The Aspertia Gym is the first Gym to be located in a player's hometown.