One emotional moment could be when Ichigo first proposes to Rukia. He might be a bit clumsy with his words, but the sincerity in his eyes would be clear. Rukia's shocked and then tearful acceptance would be very moving. Another moment could be when they exchange their vows. They would pour out their feelings for each other, talking about how they've saved each other's lives in more ways than one and how they can't imagine a future without the other. It would be a deeply emotional scene.
One possible plot could be a post - battle scenario. After all the chaos and fighting they've been through, Ichigo realizes his true feelings for Rukia. They start to secretly date while trying to maintain their duties as Soul Reapers and protectors of the living world. Eventually, their friends find out and support them wholeheartedly. They plan a simple yet beautiful wedding in the Soul Society, with all their friends and comrades in attendance, and they live happily ever after, constantly going between the Soul Society and the living world to visit their loved ones.
Well, a plot twist could be that one of them loses their powers right before the marriage. For example, if Ichigo loses his Soul Reaper powers, he might start to doubt if he can protect Rukia and their future together. Or perhaps Rukia is suddenly called back to Soul Society for an important mission that she can't refuse, and it's a mission that might keep her there for a very long time, putting their relationship to a hard test. Also, there could be a new character introduced who has a mysterious connection to either Ichigo or Rukia and tries to disrupt the wedding.
In some fanfictions, it might be because of jealousy. For example, if Rukia spends a lot of time with another character, Ichigo could get pissed. He might have feelings for her that he hasn't fully realized or admitted, and seeing her with someone else stirs up his anger.
When Ash presents Serena with a special gift during the wedding. It could be a flower crown made of the rarest flowers from all the regions they've visited together. Serena would be deeply touched because it shows how much Ash pays attention to their shared memories. Also, at the end of the ceremony, when they release a flock of Butterfree, just like when Ash released his first Butterfree. It symbolizes a new beginning for them, and this moment would be filled with a mix of nostalgia and excitement for their future together.
One interesting scenario could be their honeymoon. They might choose to go to a secluded place in the Soul Society that has beautiful landscapes and spiritual energy. Another scenario could be when they are decorating their new home together. Ichigo might want to add some human - world items while Rukia has her own ideas from the Soul Society. Also, when they have their first argument as a married couple, it could be over something as simple as how to train Ichigo's Soul Reaper powers better, and they have to learn how to communicate and resolve their differences like any normal couple.
One common theme is the adjustment to married life. They come from different backgrounds, so seeing how they adapt to living together is popular. Another is the support they give each other in battles and in dealing with the various hierarchies in the Soul Society.
Yes, there are quite a few. One interesting one might be where they face challenges together in the Soul Society after getting married. It could involve dealing with the reactions of their friends and comrades. Another might focus on their daily lives, like how Ichigo tries to balance his human world duties with his new life in the Soul Society as Rukia's husband.
One possible plot twist could be that an ancient curse is revealed just before the wedding. This curse might be related to their different spiritual powers and threatens to tear them apart. For example, it could cause Toshiro to lose his ice powers, which are an essential part of his identity, and he might feel unworthy of Rukia. Another plot twist could be the interference of a powerful enemy. Maybe a rogue Soul Reaper who has a vendetta against Toshiro's division decides to use the wedding as an opportunity to strike. They could try to kidnap Rukia to lure Toshiro into a trap. Or perhaps a discovery that their marriage has been pre - ordained by some higher spiritual force for a greater purpose, like saving the Soul Society from an impending doom, and they have to quickly come to terms with this new - found responsibility.
Well, the plot might involve some kind of prophecy or destiny that links Ichigo and Kukaku together. Maybe there's a mysterious force in the Soul Society that decrees they should be together. Their relationship could start with a shared adventure, like they have to team up to fight a powerful enemy. During this time, they start to understand each other on a deeper level. For the wedding, it could be a grand affair with all of Ichigo's friends from Karakura Town and Kukaku's allies in the Soul Society coming together. There could be some comical moments too, like Ichigo trying to understand the complex wedding traditions of the Soul Society.
The plot could involve Nemu saving Ichigo's life during a fierce battle. This act makes Ichigo see Nemu in a new light. They begin to spend more time together, sharing their past traumas and dreams. As they fall deeper in love, they decide to get married. However, they have to keep it a secret at first due to the political situation between Hueco Mundo and Soul Society. Eventually, their love story becomes an inspiration for others in both worlds.