The Weasley family's reaction would be intense. Fred and George might make jokes about it at first, but deep down they'd be concerned. Ginny's older brothers would be protective and think Draco isn't good enough for her. The Malfoy family would also be in turmoil. Draco's grandparents, if they were still alive, would probably be appalled. However, Draco and Ginny's love could gradually change the minds of some family members. For example, Draco could show the Weasleys that he has changed for the better, and Ginny could make the Malfoys see that she is a strong and worthy addition to their family.
Ginny's family, especially the Weasleys, would probably be very shocked at first. They have a long - standing feud with the Malfoys. But as they see how much Ginny loves Draco and the baby, they might gradually come around. Ron, for example, might be the most difficult to convince, but seeing the baby could soften his heart.
The Weasleys would be in shock initially. Ron might be the most vocal about his disapproval, but Hermione would try to make him see reason. As time goes on, they would see how much Draco has changed and how much he loves Ginny. Arthur Weasley would be interested in the magical security arrangements for the wedding. On the Malfoy side, Lucius would be a bit stiff, but Narcissa would be overjoyed. She would welcome Ginny into the family and would probably give her some heirloom jewelry as a wedding gift.
Harry might be initially skeptical. He has a history with Draco, so he'd be worried for Ginny. But over time, if he sees how happy Draco makes Ginny, he could come around. Hermione would probably be more open - minded. She'd look at Draco's character development and judge based on that. Ron, on the other hand, would be the most difficult. He'd be very protective of Ginny and would likely grumble a lot at first.
Tsukune's human family might be initially shocked. But if they see how much he loves Mizore, they could gradually come to accept her. They would have to get used to the idea of having a youkai in the family. As for Mizore's youkai family, they might be more accepting since they understand the youkai world better. However, they could also be protective of Mizore and want to make sure Tsukune is worthy of her.
Ichigo's family on the other hand, would also be surprised. His father might be a bit more open - minded though, given his own strange abilities and knowledge of the spirit world. His sisters would likely be excited about having Byakuya as a brother - in - law, especially if they see how much Ichigo cares about him. Overall, Ichigo's family would probably welcome Byakuya once they get to know him better.
The reaction of their families could be quite diverse. Natsu doesn't really have a traditional family, but his friends in Fairy Tail are like family. They would be excited and probably throw a huge party. Cana's father, Gildarts, has been absent for a while. But when he hears the news, he might feel a mix of emotions. He could be happy that Cana has found love, but also a bit sad that he hasn't been around more. However, overall, the Fairy Tail guild would embrace their union and make them feel special and loved.
Midoriya's family would be ecstatic. His mother would be busy helping with the wedding preparations, giving advice on everything from the dress to the food. Uraraka's family would be equally happy. They would see Midoriya as a kind - hearted and strong young man. Her mother would likely bond with Midoriya's mother over the wedding plans, and the two families would come together to celebrate the union of the two young heroes.
I think Puck's fairy friends would be divided. Some of his more mischievous friends would be all for it, seeing it as a great opportunity to play more pranks on the mortal world through Sabrina. But his more serious fairy relatives might be concerned about the mixing of the mortal and fairy worlds through this marriage.
Ichigo's family might be a bit surprised at first. His father, Isshin, would probably be happy in the end though, seeing his son find love. His sisters might be excited to have Rangiku as part of the family and look forward to all the fun they could have together. As for Rangiku's side, if she has any family in the Soul Society, they might be a bit more hesitant. They might worry about how a relationship with a human like Ichigo could work out in the long run, but eventually come around when they see how much they love each other.
Lucas's family might be overjoyed. They could see Maya as a wonderful addition to the family. His parents might start planning big family dinners and vacations together right away. His siblings could be excited to have a new sister - like figure in the family.