One popular theme is adventure. Ash and Lillie might go on various quests together in the Alola region, exploring new places and encountering different Pokemon. Another theme is friendship. Their relationship could develop from just being acquaintances to really close friends who support each other through thick and thin. Also, growth is a common theme. Lillie might overcome her shyness and fear of Pokemon with Ash's help, while Ash could grow in his understanding of different cultures in Alola through his interactions with Lillie.
Some popular themes include the idea of family. Since Lillie has her own family issues and Ash has a kind of surrogate family in his Pokemon and friends, they could bond over that. Protection is another. Ash could protect Lillie from various threats in the Pokemon world, like Team Skull. And there's the theme of self - discovery. Lillie is constantly learning about herself and her place in the world, and Ash can be a part of that journey, as he has his own journey of self - discovery in the Alola region as well.
One possible fanfiction could be about Ash and Lillie's adventure in the Alola region. Maybe they team up to face a powerful new Pokemon that has been causing trouble. They use their combined skills and the unique bond they've developed throughout their journey in Pokemon Sun and Moon.
A fanfiction could start with Lillie having a strange dream about a legendary Pokemon. Ash believes her dream could be a sign. So they set out on a quest to find this legendary Pokemon. Along the journey, they meet different characters from the Alola region who give them clues. Their bond deepens as they face difficulties together and eventually find the legendary Pokemon, which turns out to have a special connection to Lillie.
One possible fanfiction could be about Sun and Lillie going on an adventure together in the Alola region. They might discover a new and rare Pokemon that only appears during a certain lunar phase. Sun could use his skills as a trainer to protect Lillie from any potential danger, and in the process, their relationship could grow deeper.
Ash is adventurous and bold, while Lillie is more reserved and cautious. Their personalities complement each other. Ash's boldness can encourage Lillie to step out of her comfort zone. For example, when it comes to approaching new Pokemon. And Lillie's caution can sometimes rein in Ash's over - eagerness, preventing him from making hasty decisions in dangerous situations.
A simple plot could be that Sun and Lillie are on a quest to find a special Z - Crystal. They face many obstacles along the way, such as difficult terrain and other trainers. Their relationship develops as they support each other through these challenges.
One popular theme is Lillie's growth. In many fanfics, she starts as a somewhat shy and reserved character. Her journey in Pokemon Sun and Moon is about finding her own strength. Another theme could be her relationship with the protagonist. It often explores how they support each other through their adventures. And of course, the theme of Pokemon battles and training also plays a role as it's set in the Pokemon universe.
One interesting plot idea could be Ash and Lillie going on a special mission together to find a rare and powerful Pokemon that has the ability to heal other Pokemon. They face many challenges along the way, like rough terrains and other trainers who also want to capture this Pokemon. Another could be a story where Lillie gets lost in an unknown part of the Alola region and Ash has to use all his skills and knowledge to find her. During this time, he discovers more about Lillie's past and the secrets she has been hiding.
One possible theme could be friendship. Lillie's return might reaffirm the importance of the friendships she had before she left. Another theme could be growth. Maybe she has grown in some way during her absence and her return shows this development.
One common theme is adventure. Since they are both Pokemon trainers in the Pokemon world, they often go on adventures together in the fanfictions, exploring new regions and encountering new Pokemon.
Ash and Lillie's relationship might develop as they help each other with their personal goals. Lillie could be trying to overcome her fear of Pokemon, and Ash, with his vast experience, could guide her. In return, Lillie could help Ash understand more about the unique culture and Pokemon in Alola. As they do this, they'll start to respect and care for each other more deeply, leading to a stronger bond.