Authors usually portray Luna as the voice of reason. Since she has a very unique perspective on the wizarding world, she often acts as a counterbalance to Dark Harry. For example, when Harry is about to make a rash or cruel decision, Luna will step in and offer a different view. She is also shown as being very empathetic towards Harry, trying to understand the root of his darkness.
Luna is often written as the one who can break through Harry's dark shell. She's presented as having a very pure heart and a powerful intuition. In these stories, she uses her dreamy nature not as a weakness but as a strength. For instance, her dreams might hold clues to what Harry needs to do to return to the light. She is also shown as being very loyal to Harry, standing by him through all his trials and tribulations in the fanfiction world.
In many Dark Harry and Luna fanfictions, Luna is depicted as a sort of guide. Her knowledge of the strange and the unseen in the wizarding world gives her an edge. She might introduce Harry to magical creatures or ancient spells that can help him either control or overcome his dark side. And she's always portrayed as being unafraid of Harry's darkness, which makes her a very strong character in these stories.
For Harry, his growth could be shown through how he becomes more open - minded. He starts to embrace Luna's quirks and her different way of seeing things, which in turn makes him more accepting in general. For example, he might initially be a bit hesitant about Luna's belief in some of the more out - there magical creatures, but as they date, he starts to see the beauty in her imagination.
Harry might become more at peace. After all the battles and losses, he could focus on the positive aspects of life. Luna, on the other hand, could become more confident in sharing her ideas. She no longer has to be in the shadow of the war and can be more outspoken.
In these fanfictions, they often interact with great respect for each other. Hermione, with her logical mind, might initially be a bit skeptical of Luna's more out - there ideas, but she soon comes to appreciate them. Luna, on the other hand, admires Hermione's intelligence and determination. They might exchange ideas about magic, with Luna sharing her more esoteric knowledge and Hermione providing the more textbook - based facts.
Harry's character could be consumed by anger and a thirst for revenge in a dark fanfiction. This would make him more aggressive and less empathetic. Luna, however, might use the situation to grow in strength. She could become a sort of moral compass for Harry, but at the same time, she might have to harden herself. Maybe she starts to study dark magic not to use it but to understand it better and find ways to counter it. This would change her from a carefree observer of the magical world to a more proactive defender.
One popular storyline is where Harry, in his 'dark' state, teams up with Luna to uncover a hidden conspiracy within the wizarding world. They might face off against a powerful dark force that has infiltrated Hogwarts or the Ministry. Another is a more angsty plot where Dark Harry has some internal conflict and Luna is the only one who can reach his true self. For example, she might use her unique understanding of the magical world to show him a different path.
There are quite a few great authors. 'DreamyDracoLuna' is an author who really delves into the characters' minds. Their fanfictions are very character - driven, which makes for an interesting read. 'MysticPen' is another one. They often write stories with a touch of mystery and adventure, which suits the Draco - Luna pairing well. 'EnchantedAuthor' also stands out. Their works usually have a beautiful writing style and explore different aspects of Draco and Luna's relationship.
Writers may also differ in how they show the characters' relationships with their peers. One writer could have Lily Luna being extremely popular among her classmates, while her brothers are more of the loner types. Another might write that all three of them are part of a tight - knit group of friends, but each has a different role within the group. Lily Luna could be the mediator, one brother the joker, and the other the responsible one.
Harry is brave and a bit mischievous. His bravery allows him to take risks while playing pranks. For example, he might not be afraid to prank a strict teacher like Snape. Luna, on the other hand, is very creative and has an out - of - the - box thinking. So she could come up with really unique prank ideas, like making the school owls deliver love letters to the wrong people. Together, their personalities make their pranks both daring and imaginative.
She becomes more possessive. Normally, Luna is a dreamy and somewhat detached character, but in yandere fanfictions, she'll be much more clingy and protective of Harry.
One plot could be that in a dark version, Harry and Luna team up to expose a hidden, evil regime within the wizarding world that has been secretly controlling things from the shadows. They might have to use some rather unorthodox and darker magic to do so.