In the fanfiction, Calem's immortality could be a curse placed on him by an evil Team. They envy his skills as a Trainer and his strong bond with his Pokemon. As an immortal, Calem has to find a way to break the curse. He embarks on a journey across the Kalos region, facing many challenges and battles, in the hope of finding a legendary Pokemon that can reverse the curse.
One possibility could be that Calem's immortality is a result of some ancient Pokemon power. Maybe he stumbles upon a hidden temple in the Kalos region where a powerful Pokemon bestows this gift upon him. This would lead to him having to deal with the loneliness that comes with immortality as he watches his friends and family age and pass away.
One aspect of Pokemon Calem and Serena fanfiction could be the exploration of their relationship. It might depict how they grow closer during their Pokemon adventures. For example, they could face difficult battles together and in the process, their bond deepens. Their different personalities also play a role. Calem might be more reserved while Serena could be more outgoing, and this contrast can create interesting dynamics in the fan - made stories.
A common theme is romance. Since they are often seen as a potential couple in the Pokemon universe, fanfiction writers love to explore their romantic relationship. It could start from a simple crush and develop into a deep love over time.
His relationships with his friends would likely become strained. They would age while he stays the same. For example, his best friend might start to feel a sense of envy or resentment as Calem doesn't have to face the normal passage of time. His family might be confused and worried about his immortality at first.
Serena would do well with a Delphox, the evolved form of Fennekin. It has strong fire - based attacks. Additionally, an Altaria would be a wonderful addition. It's a flying - type with a graceful appearance. For Calem, Greninja would be a superb choice. It's extremely agile and has great water - type attacks. And a Tyranitar could be in his team too, as it's a very tough and powerful Pokemon.
One great fanfiction is 'A Journey with Serena and Calem'. It focuses on their adventures in the Kalos region, exploring how their relationship develops during battles and while facing various challenges. The author does a wonderful job of capturing their personalities as seen in the game.
The plot also matters a great deal. It could be something related to their Pokemon journey, like exploring new areas in Kalos that weren't fully covered in the game. Or it could be a more personal story, like Serena dealing with homesickness and Calem helping her through it. A good balance between action - packed Pokemon battles and emotional character moments is key. In a story I read, they were on a quest to find a legendary Pokemon, and along the way, they had heart - to - heart conversations that deepened their relationship.
One interesting plot idea could be Serena and Calem getting lost in an uncharted region of the Pokemon world while on a research expedition. They have to rely on their Pokemon and each other to survive and find their way back. Another could be a story where they compete in a special, high - stakes Pokemon tournament that tests not only their battling skills but also their friendship. And perhaps a plot where they discover a new type of Pokemon together and have to protect it from an evil organization that wants to use it for its own gain.
One idea could be Calem's journey after becoming the champion. Maybe he travels to other regions to learn new battle strategies and meet different Pokemon. Another could be a story where Calem has to team up with his old rivals to face a new, powerful threat to the Kalos region.
I think Professor Sycamore would be an interesting character to pair with Calem in fanfiction. Calem could be his assistant for a special research project on Mega Evolution. This would give Calem a chance to learn more about the secrets of Pokemon from the professor. Also, Tierno could be paired with Calem. They could have a dance - off with their Pokemon, which would be a really fun and unique scenario in the fanfiction.
The characters Calem and Serena themselves are very interesting. Their relationship in the game can be explored further in fanfiction, like their adventures together that might not be fully shown in the game. It gives fans a chance to see more of their dynamic.