Some common themes could be self - discovery. As Mikan grows up, she might be exploring her new abilities and who she truly is. Another theme could be friendship evolution. Her relationships with friends from her younger days might change as they all mature. Also, love and romance might start to play a part as she's grown up.
Natsume would probably be one of the main characters to appear. Their relationship was quite significant when they were younger, and it could continue to evolve as they grow up. Hotaru might also be there, as she was Mikan's good friend. And there could be new characters introduced, like colleagues if the fanfiction focuses on her career, or new friends she makes in her adult life.
Well, finding good 'mikan sakura grown up fanfic' can be a bit tricky. You could join some relevant fan communities or forums. There, fans often share and discuss their favorite fanfics. They might be able to point you in the right direction towards some great mikan sakura grown - up stories.
There are indeed some out there. One type of mikan sakura is reincarnated fanfiction might involve her coming back to the same world but with memories of her past life intact. This can lead to all sorts of interesting scenarios, like her trying to change things that went wrong in her previous life or having new relationships with the same characters in a different way. Another possibility is that she is reincarnated into a completely different genre setting, like a fantasy or sci - fi world, which can add a whole new layer of excitement to the story.
I recommend 'Mikan and Natsume's Promise'. It's a short but heart - warming fanfiction. It focuses on a promise they make to each other and how they uphold it throughout different situations.
One common theme is redemption. If in her previous life she made mistakes, in her reincarnated form she tries to make up for them. For example, if she hurt someone in the past, she might go out of her way to help that person in the new life.
One great mikan sakura and natsume hyuuga fanfiction is 'The Unseen Bond'. It beautifully explores their relationship in a new setting. The author does a wonderful job of portraying their emotions.
She may not be able to perform complex magic feats that are way beyond her known capabilities in the original story. For example, if in the original she can only do basic healing magic, it would be unrealistic for her to suddenly be able to conjure up powerful offensive spells in fanfiction without a believable backstory for her power growth.
This is a wuxia novel. The protagonist grew up in a small town and had seven or eight friends. Each of them had different abilities. There was also a girl in the story who had known each other since childhood, and the protagonist had many emotional entanglements with her. I hope you like my recommendation. Muah ~