Hisui could be put in situations where she has to make tough moral choices. For example, when faced with a decision that could benefit the kingdom but harm an innocent group of people. This would force her to think deeply about her values and develop her character in terms of ethics.
The unique character of Hisui. She has her own charm and backstory in the Fairy Tail universe. Writers can explore her character in different and often exciting ways in lemon fanfiction, adding a new dimension to the existing story.
Well, the 'Eyes of the Sun God' in the 'Fairy Tail Hisui' fanfiction could symbolize a source of great energy. Maybe it has the power to control light or heat. It could be that characters are on a quest to either obtain it for its power or to keep it out of the wrong hands. It might also have some connection to the history and lore of the 'Fairy Tail' world in the Hisui part of the story.
One common theme is adventure. Since Fairy Tail is an adventure - filled series, fanfictions often continue this trend with Princess Hisui. She might go on quests, explore new lands, or face dangerous foes.
You can try looking on some fanfiction websites like FanFiction.net or Archive of Our Own. They usually have a wide range of fanfictions including those related to Fairy Tail and Hisui. However, make sure to follow the site's rules and regulations.
A plot could revolve around Hisui having to deal with a threat to the kingdom that only she can stop due to her unique connection to certain magical artifacts. She might have to form an alliance with some of the Fairy Tail members she's not very familiar with, like Natsu and his team, and learn to trust them in the process. This would involve a lot of character development for Hisui as she steps out of her comfort zone.
Well, a great storyline might involve Hisui getting lost in a dangerous magical realm and Natsu being the one to go and rescue her. During their time in the realm, they rely on each other's strengths. Hisui uses her knowledge and diplomatic skills, while Natsu uses his brute strength and dragon slayer magic. This shared experience brings them closer. Or perhaps there's a prophecy about Hisui and Natsu that they initially don't believe in, but as events unfold, they start to see the truth in it.
To develop their relationship realistically, start with small interactions. For example, they could meet at a guild event and have a short conversation. Then, gradually build on these interactions. Maybe they have a common goal, like helping a village that has been affected by a dark wizard. As they work towards this goal, they start to understand each other's strengths and weaknesses.
One interesting crossover could be a story where Naruto and characters from Fairy Tail end up in the world of Hisui. Maybe Naruto's jutsu skills combined with Fairy Tail's magic could be used to solve the mysteries or threats in Hisui. For example, Naruto's shadow clone jutsu could be used for reconnaissance while Fairy Tail mages use their elemental magic for combat.