Well, perhaps a plot twist could be that the magic binding their marriage is somehow linked to an ancient prophecy. This prophecy states that their union will either save or doom the wizarding world. This adds a whole new layer of tension to their wedding day. Also, there could be a plot twist where Ginny's ex - boyfriend shows up and tries to win her back, creating a love triangle - like drama in the middle of the wedding. Or, a magical object that was thought to be a wedding gift turns out to be a powerful and dangerous relic that starts causing trouble at the wedding.
One possible plot twist could be that Draco's family objects strongly to the marriage. His pure - blood supremacist parents might see Ginny, a Weasley, as beneath them. They could try to sabotage the relationship, which would create a lot of drama. Maybe they'd spread false rumors about Ginny in the wizarding community.
One possible plot twist could be that while drunk, they accidentally reveal secrets they've been keeping from each other. For example, Ginny might let slip about a small insecurity she has in their relationship that she's been hiding. Another could be that they end up in a part of Hogwarts they've never been to before while drunk and discover something mysterious, like an old hidden room with strange artifacts. Maybe they also get into a bit of trouble with the school authorities when they are found drunk, but this incident actually brings them closer as they face the consequences together.
Maybe Harry discovers that Amelia has a special magical ability she's been hiding, like the power to communicate with magical creatures in a way no one else can. This could change how they interact with the wizarding world together and add a new dimension to their married life in the fanfiction.
Another plot twist might be that the wizarding world somehow discovers their secret marriage against their will. This could lead to a whole bunch of political and social implications. For example, there could be those who oppose the union due to Hermione's Muggle - born status and Harry being a symbol of the wizarding world. It could spark a movement for or against inter - status marriages in the wizarding community.
A plot twist could be that Harry discovers a hidden prophecy related to his marriage with Fleur. This prophecy might involve a great danger that they have to face together, like an ancient dark magic that only their combined powers can defeat. It would add a layer of mystery and adventure to the fanfiction.
One possible plot twist could be that Sakura discovers Kakashi has a secret past she never knew about. Maybe he was involved in some kind of dangerous mission long ago that has consequences in the present. This could put a strain on their relationship as she tries to come to terms with this new information.
One possible plot twist could be that just before the wedding, Ayame discovers a long - lost relative who has some dark secrets about Kouga's family. This relative tries to stop the wedding by revealing these secrets to Ayame. Another could be that on the wedding day, an old enemy of Kouga shows up and challenges him to a fight, putting the wedding on hold. Or perhaps there is a misunderstanding where Ayame thinks Kouga has betrayed her trust in some way, like he made a deal with an enemy for the sake of the tribe but didn't tell her.
Maybe Hikari suddenly gets an amazing job opportunity in a far - off place. This would force them to decide between following Hikari's career dreams and staying in their current comfortable life. It could lead to some really emotional and tense moments in the fanfiction.
One possible plot twist could be a long - lost relative showing up at the wedding and revealing a family secret that threatens to stop the marriage. For example, if there's a feud in the family that was hidden from Heiji and Kazuha.
One possible plot twist could be that their marriage is part of a larger plan to infiltrate an enemy organization. They pretend to be a happily married couple but are actually gathering intel. Another could be that Neo's past catches up with her during the wedding, and they have to deal with old enemies trying to disrupt the celebration.