One possible aspect of Christian and Lissa's relationship in fanfiction could be how they support each other through the challenges in the Vampire Academy world. Christian, with his unique position as a Moroi with an unusual power, and Lissa, the Dragomir princess, might find solace in each other's company. They could be shown exploring their powers together, like Lissa using her spirit ability and Christian his fire power in tandem to overcome threats from Strigoi or political intrigue within the Academy.
Fanfiction often explores how they overcome the challenges in their relationship. There could be elements of social status differences. Lissa being a princess has certain expectations and responsibilities, while Christian has his own family issues to deal with. But their love might be so strong that they are willing to fight against these obstacles. They might find ways to balance their duties and their relationship, for example, by using their combined influence to bring positive change to the Academy.
In many fanfictions, Dragomir often has unique magical abilities. For example, they might possess a form of elemental magic that is different from what is typically seen in the Harry Potter series. This could be something like controlling a special type of energy.
I'm not sure specifically what the 'lissa graphic novel' is about as there could be many with that name. It might be about a fictional character named Lissa and her adventures, or it could deal with themes like friendship, love, or a struggle against some sort of adversity. Without more context, it's hard to say for certain.
A fanfiction I really liked is 'When Dragomir Meets Harry Potter'. This story delves deep into the relationship between the Dragomir and Harry Potter. It explores how they could become friends or allies, and how the Dragomir could potentially help Harry in his fight against Voldemort. It also showcases the unique Dragomir lore and how it can be incorporated into the already rich tapestry of the Harry Potter world.
Since I don't know the exact 'lissa graphic novel', I can only assume that Lissa is likely to be one of the main characters. There may be other characters like her friends, maybe a sidekick who helps her on her adventures, or perhaps an antagonist who creates problems for her.
Perhaps the fanfic delves into an adventure where Frederick and Lissa are partners. They could be facing various challenges together, and through this, their bond strengthens. For example, they might be on a quest to save their kingdom from an evil force. In this scenario, their individual skills and abilities come into play, with Frederick being strong and brave and Lissa having her own unique powers or knowledge that contribute to their success.
Another element is their roles in the kingdom. Chrom as the exalt and Lissa as a healer. Fanfics play with these roles, such as when they have to use their positions to protect the kingdom from threats. They might make strategic decisions together, which showcases their combined leadership.
I really liked 'Lissa and Rose: The Unseen Adventures'. This fanfic takes the two on a journey outside of the normal Vampire Academy setting. They face new challenges together, which makes their friendship even stronger. The writing is quite engaging and it's easy to get lost in the story.
There's also 'The Meeting of Hearts' which is a really engaging 'lucina x lissa fanfic'. It focuses on how they first meet and the initial spark of their relationship. It has a really nice flow and the dialogue is well - written.