The theme of perseverance could be explored. Lillie may have faced many challenges during her time away and her return shows that she has persevered through them. Also, the theme of change is likely. The world she left has probably changed, and she herself has changed, and the fanfiction could focus on how everyone adapts to these changes.
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.
A theme of redemption could also be present. If she left under some sort of difficult circumstances, her return could be a way to make up for things or to right wrongs. Additionally, the theme of discovery might be there. Her return could lead to the discovery of new places, Pokemon, or secrets in the Pokemon Sun and Moon world.
Well, in this fanfiction, Lillie's return often brings new adventures. Maybe she comes back with new Pokemon skills or knowledge. It could also lead to reunions with old friends in the Pokemon Sun and Moon universe.
One possible storyline could be Lillie and Moon teaming up to discover a new and rare Pokemon species in the Alola region. They might face challenges like rough terrains and other trainers who also want to find this Pokemon first.
Growth is a common theme. Lillie often starts as a somewhat timid character and grows into a more confident and capable person. Another theme is friendship. She forms strong bonds with other characters and Pokemon. Adventure is also there, as she goes on various quests and travels in the Alola region.
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.
In some fanfictions, Lillie is often portrayed as a more delicate and reserved character. Moon, on the other hand, is seen as the bolder one. For example, when they enter a new area full of unknown Pokemon, Moon might be the first to approach and try to interact, while Lillie hangs back a bit.
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.
One common theme is growth. Lillie often starts as a somewhat timid character and grows into a strong and confident trainer. Another theme is friendship, mainly her relationships with her Pokemon. For example, in many fanfictions, she forms a deep bond with her first Pokemon. Also, the exploration of the Alola region is a theme. Writers like to describe the unique landscapes and cultures of Alola that Lillie experiences during her journey.
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.
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 interesting aspect could be the unique interpretations of the characters. In fanfictions, authors often give Lillie more in - depth backstories or different personality traits compared to the original game. For example, they might explore her relationship with the Pokemon in a more emotional way, showing how she bonds with them on a deeper level.