I'm not sure specifically as there could be many different plots in this fanfiction. It might involve the adventures of the trainer in the Kalos region, encounters with new Pokemon, and the journey to become a Pokemon master.
I don't know for sure as it's a fanfiction. But it could be a young trainer, perhaps based on the player character in the games. Maybe there are also some unique NPCs created by the fanfiction author.
Well, a 'pokemon kalos adventure vol 1 fanfic' might center around the unique features of the Kalos region. It could involve the story of a young trainer who discovers rare Pokemon, participates in Kalos - specific gym battles, and gets involved in the local Pokemon lore. For example, they might interact with the fairy - type Pokemon which are prominent in Kalos. The fanfic could also explore the relationships between the trainer and their Pokemon partners as they grow together during their adventure.
Serena is also very popular. Her relationship with Ash and her own growth as a Pokemon trainer add depth to the stories. She has her own dreams and goals in the Kalos region, which makes her a great character to follow in fanfiction.
One interesting plotline could be a trainer's journey to discover a rare and powerful Pokemon in the Kalos region. They might face many challenges along the way, like battling against powerful trainers who also seek the same Pokemon.
Since it's a fanfiction about Pokemon in the Alola region, it could involve the main character exploring different islands. They might take part in the island challenges, meet unique Alola Pokemon forms, and have interactions with the local characters. For example, they could team up with Hau or Lillie to battle Team Skull or discover some hidden secrets in the Alola region's beautiful landscapes.
I don't know for sure without reading it, but probably the trainer who is on the Alola journey, and maybe some of the well - known Alola characters like Hau or Lillie.
One interesting plotline could be the protagonist's first encounter with a rare Unova Pokemon. It might be a unique take on how they bond and start their journey together.