A possible plot could be that Luna has a premonition about a new dark threat. She and Harry team up to investigate. As they work closely, they find that they complement each other perfectly. Harry is amazed by Luna's knowledge of the more esoteric aspects of magic. Their relationship blossoms during this adventure. When they finally defeat the new threat, they celebrate by getting married. The wedding would be a grand event at the Burrow, with all their friends and family, and lots of Weasley - style chaos and magic.
One idea could be that after the war, Harry and Luna start to spend more time together while helping to rebuild Hogwarts. They discover they have a shared love for exploring the Forbidden Forest in a more peaceful way. As they bond over their unique experiences and views of the wizarding world, their friendship turns into love, and they decide to get married, with a ceremony that combines their love for nature and magic, like having the venue filled with magical creatures and floating lights.
One idea could be that Harry, who is initially nervous about the Yule Ball, gets some unexpected advice from Luna. She tells him to just be himself and not worry about the formalities. So at the ball, Harry and Luna end up having a really fun time, dancing in their own unique way, much to the amusement and envy of some of the other students.
Maybe a plot where Alvin and Brittany's wedding is almost ruined by a jealous rival. This rival tries to create chaos during the preparations. But Alvin and Brittany stay strong and with the support of their family and friends, they manage to overcome all the obstacles. The wedding then becomes a celebration not just of their love but also of their ability to face difficulties together.
One idea could be that they decide to have a small, intimate wedding in a place that's special to them, like the high school where they first met. Their friends from the musical group could all be involved, singing and dancing at the reception. Maybe there are some minor hiccups during the planning, like disagreements over the color scheme, but in the end, they have a beautiful day filled with love and memories.
One idea could be that they decide to get married suddenly after realizing their deep love during a trip. They face opposition from their friends at first, thinking it's too rushed. But Puck and Rachel are determined. They plan a simple yet beautiful wedding with just their closest family and friends. In the end, everyone sees how happy they are together and supports their marriage.
One idea could be that they have a simple, traditional wedding but with a Dragon Ball twist. For example, all their Z - Fighter friends use their powers to create a unique and amazing wedding venue. Goku could accidentally almost destroy the wedding cake with a stray ki blast while showing off to Goten. Videl could wear a Saiyan - inspired wedding dress, with a red sash symbolizing the Saiyan heritage.
Some pure - blood supremacist families who don't approve of their marriage could be antagonists. They might try to cause trouble for Harry and Luna, maybe by spreading false rumors or trying to undermine their work in the wizarding world.
One possible plot could be that Draco and Luna get married in secret to avoid the chaos that would ensue in the wizarding world due to their different backgrounds. They then start a new life away from the prying eyes, perhaps in a small cottage near a magical forest. Luna uses her unique magical knowledge to help Draco understand and embrace a different side of magic, while Draco's Slytherin cunning helps them protect their new home from any threats.
A plot might involve them starting a school of their own. After getting married, they realize that the existing magical education system has some flaws. So, they decide to create a new school where they can teach students in a more inclusive and innovative way. This would involve them recruiting teachers, designing the curriculum, and dealing with the opposition from the traditional wizarding establishment. Their relationship would be at the center of this story, as they rely on each other to overcome all the obstacles.
One plot could be that Harry has to defend his ownership of the Luna fanfiction against those who want to claim it for themselves. This could lead to a series of adventures and magical battles within the fanfiction world.
The plot might involve their family backstory. Maybe their parents were involved in some secret magical research that put their family in danger. As siblings, Harry and Luna could be on a quest to uncover the truth about their family's past while also dealing with the normal Hogwarts drama like exams, Quidditch, and the threat of the Dark Arts. They could also have a special bond that allows them to communicate telepathically or something similar, which would add an interesting twist to the story.