Mario would surely be a big part of it. He could be Luigi's best man, giving him advice on how to deal with pre - wedding jitters. Princess Peach might also be there, helping Daisy with her wedding dress and all the girly stuff. Toad could be the one in charge of the invitations, running around the Mushroom Kingdom to make sure everyone gets one.
Well, it could be a story full of love and adventure. Maybe Luigi has to overcome his shyness and prove to Daisy's family that he's worthy of her. They might go on a quest together before the wedding, like finding a special flower that is said to bring eternal love to their marriage.
In many Luigi and Daisy love story fanfictions, the Lumas can be supporting characters. They might bring some magic or a special element to the story. For example, they could be the ones who show Luigi a vision of his future with Daisy, which gives him the courage to confess his love. And Rosalina could also be there, guiding Luigi in understanding his feelings for Daisy and how to handle the relationship.
Wario could also serve as an antagonist. He might be envious of Luigi's new married life and try to steal their treasures or disrupt their happiness. Maybe he spreads false rumors about Luigi in the Mushroom Kingdom just to create chaos in their lives.
Peach could be an important character. As a friend of Daisy and a princess in the Mushroom Kingdom, she could offer her wisdom on raising a child. Also, Yoshi could be there. Yoshi is always friendly and could be like a protector for the baby, watching over it when Luigi and Daisy are busy.
Well, obviously Luigi and Daisy are the main characters. Luigi, Mario's timid but kind - hearted brother, and Daisy, the feisty princess from Sarasaland. They are at the center of the story in this fanfiction.
Trish would most likely be one of the important supporting characters. She could be helping them manage their music business or just be there as a great friend, giving relationship advice to them.
Well, perhaps in the fanfiction, Luigi and Daisy decide to build a new home together. They might have different ideas about how the home should look, like Luigi wanting a more cozy and simple place while Daisy dreams of a grand and luxurious mansion. This could lead to some comical and also heartwarming moments as they try to compromise and create their dream home.
For Naruto's side, Sasuke could be a main supporting character. He might be initially skeptical about Naruto's relationship with Rangiku but eventually comes around. Sakura could also be there, helping with the preparations for the wedding. On Rangiku's side, Ichigo could be a key support. Since he has experience with different worlds, he could help bridge the gap between Naruto's world and Rangiku's. Toshiro Hitsugaya, Rangiku's captain, would also be involved, either reluctantly giving his blessing or being a bit overprotective at first.
Their best friends could be great supporting characters. For example, Bella's best friend might help her with choosing the wedding dress, giving her advice on how to deal with pre - wedding jitters. Paul's friend could be the one who organizes a wild bachelor party but also stands by him during the nerve - wracking moments before the wedding.
Hermione and Ron would likely be important supporting characters. They could be involved in the wedding preparations, like Hermione helping Ginny choose her dress or Ron trying to keep Harry calm before the ceremony.