Well, without having read the 'gilbert bougainvillea light novel', it's hard to say precisely. But light novels often have unique settings and characters. Maybe Gilbert is on a quest in a land where bougainvillea has some special significance, like it could be a source of magic or a symbol of a long - lost civilization.
You could try looking for it in specialized bookstores that carry a wide range of light novels. Sometimes local independent bookstores have a good selection.
One aspect to consider in Gilbert x Violet fanfiction is the exploration of their relationship's growth. Their connection in the original work was complex and filled with unspoken emotions. Fanfictions often delve deeper into how they might communicate better, perhaps in post - war scenarios where they are trying to rebuild their lives. For example, some fanfictions may focus on Violet learning more about human emotions through her relationship with Gilbert, which was a central theme in the original anime.
Gilbert is alive in the Violet Evergarden novel. The plot unfolds in a way that ensures his presence and his connection with the main character remains intact throughout the story.
A common theme is the redemption of their past. Both Gilbert and Violet have had difficult pasts, with Violet being used as a weapon and Gilbert having to endure the hardships of war. Fanfictions often explore how they heal each other. Another theme is the discovery of love. In the anime, their love was a bit ambiguous at times, and fanfictions clarify and intensify it.
In violet x gilbert fanfiction, the theme of acceptance is quite prominent. Gilbert accepts Violet for who she is, with all her quirks and past traumas. And vice versa. Another theme is the power of connection. Their relationship is depicted as something that gives them strength. And the theme of hope also runs through many of these fanfictions, as their relationship is often a source of hope for both of them in a rather difficult world.
One interesting aspect could be the relationship between Violet and Gilbert. Their interactions might be full of emotional depth, from loyalty to unspoken feelings.