Their other classmates like Okuda would be very sweet. She might make them some special potions or concoctions as wedding gifts, something that symbolizes good luck and a long - lasting marriage. And she would be all shy and cute about presenting it to them.
I think Korosensei would be a bit emotional. He has watched them grow up and develop as students and now as a couple. He would give them a really heartfelt speech about love and commitment, and how they should always support each other. And he might also offer some really strange but useful marriage advice, like how to communicate effectively using his own unique methods.
Their relationship would likely become more serious and committed. They'd have to rely on each other more than ever before.
Evie would be over the moon. She's Mal's best friend and would be so happy to see her in a loving marriage. She'd probably be constantly offering fashion advice for Mal's new royal look. Jay would be proud of Ben for finding such a great partner. He might also tease Mal a bit in a friendly way. Carlos would be excited and would love to have a friend as the queen. He might start thinking of all the new inventions he could create for the kingdom now that Mal is in a position of power.
Goku would be extremely happy. He would see Gohan starting his own family and be proud of how far his son has come. He might also be excited about the potential for a new generation of strong fighters in the family. Chi - Chi would be overjoyed as well, seeing her son find love and start a new chapter in his life.
Well, a really interesting plot twist could be that they both get amnesia on their wedding day. They forget who they are and why they are getting married. Then they have to rediscover their love for each other while everyone around them is freaking out trying to figure out what to do. This would add a lot of humor and also a deep exploration of their relationship.
One popular 'nagisa and kayano kiss fanfiction' might be 'A Moment of Tenderness'. It beautifully captures the emotions between them. The author does a great job of building up to the kiss moment, with detailed descriptions of their relationship development and the feelings they have for each other.
Iruka sensei would be very proud of Naruto. He has been like a father figure to Naruto, and seeing him get married to Sakura would make him feel like Naruto has truly grown up. As for the other villagers, most of them would be happy as Naruto is a hero. They would see Sakura as a great match for him, someone who can support him and also contribute to the village with her skills.
Friends from different wizarding groups could react in different ways. The Gryffindors would be celebrating loudly and proudly. The Hufflepuffs might be the ones making sure everyone feels welcome and included in the wedding festivities. Meanwhile, the Ravenclaws could be giving intellectual toasts about the significance of their union in the wizarding world's history.
Clark might be very happy for them. He would see it as a great union that could bring more good to the world. He might offer to be the best man or help in any way he can.
Guy would be extremely excited. He'd probably see it as a new opportunity for friendly rivalry. He might challenge Kakashi to be the best husband, like he challenges him in other aspects. Asuma would be more laid - back, giving Kakashi some advice on how to deal with Anko's temper. Kurenai would be happy for Anko, offering to help her with any wedding preparations and later, with domestic things. Naruto would be over - the - moon. He looks up to Kakashi, and seeing him get married would be like a fairytale for Naruto. He'd probably pester them to tell him all about their relationship.
In a fanfic, their relationship might develop in a more romantic way. They could be paired up for a school dance or some other event. During this time, they have a chance to really talk and get to know each other on a more personal level. Nagisa might be shy at first, but Kayano's friendly nature breaks the ice. As they dance or spend time together, they feel a spark. This could be the start of a romantic relationship, with them stealing glances at each other in class and finding excuses to be around each other more often.