One possible storyline could be about Luhan and his fictional partner traveling the world. They could visit different countries, experience various cultures, and grow closer through these adventures.
Give the character some flaws. Maybe she's a bit forgetful or has a short temper sometimes. This makes her more human. And then show how Luhan and she complement each other. If she's forgetful, Luhan could be the one who always remembers important things. It makes their relationship more relatable.
One possible storyline could be that Naruto, after achieving great things in his ninja world, somehow stumbles upon a different realm where he meets the goddess. She might be drawn to his pure heart and strong will. Their marriage could bring about a union of two very different worlds, with Naruto having to learn the ways of the divine while also teaching the goddess about the values of the ninja world, like loyalty and perseverance.
Well, a fanfiction storyline could involve Anne and Gilbert dealing with a long - distance relationship for a while. Maybe Gilbert has to go away for medical training. During this time, they write long letters to each other, sharing their daily experiences and growing even closer in their absence. When he finally returns, they have a grand celebration in their small town with all their friends and family.
Another option might be Robin. She has a calm and intelligent demeanor. Robin and Luffy share a mutual respect. Her knowledge and Luffy's leadership could make for an interesting dynamic in a marriage within the fanfiction world. Also, they both have a common goal of finding the One Piece in a way.
In fanfiction, Selina Kyle could be an ideal wife for Bruce Wayne. Their relationship in the Batman lore has always been complex and filled with attraction. In a married life in fanfiction, she could bring out a different side of Bruce, as she understands his dual life to some extent, being a cat burglar herself. They could have a relationship full of mystery and passion.
Another storyline might involve Deku having to face some sort of villain threat right before the wedding. He has to balance protecting his loved ones and ensuring the wedding goes on as planned. Maybe a new villain emerges who wants to disrupt the harmony of the event. But with the help of his friends and his own heroic skills, Deku manages to defeat the villain and still have a wonderful wedding.
Adventure can also be a theme. For example, they might go on an adventure together in a fantasy world, like in some fanfictions where they explore a magical realm and face various challenges side by side.
Their married life could be filled with adventures in virtual worlds. They might continue to explore new games together, relying on each other's skills. Sinon's sharpshooting abilities and Kirito's all - around combat skills would make them a formidable team even in married life.
Their married life might be full of adventures. Since they come from different backgrounds in the original story, they would have to learn to combine their different lifestyles. Maybe Tsukune would introduce Mizore to human traditions, while Mizore would share her youkai customs with him. They would also have to face challenges together, like dealing with other youkai who might not be so accepting of their union.
Their married life could be full of adventure. Natsu, with his fiery spirit, might bring excitement and spontaneity. Cana, being a strong - willed and fun - loving character, would keep things lively. They could go on quests together, with Natsu leading the way in battles and Cana using her card magic to support. At home, they would probably have a cozy place filled with mementos from their adventures, and they'd often have friends over for parties and celebrations.