What could be the plot development in the 'Harry finds out Hermione is his twin fanfic' after the discovery?

He might be initially shocked. After all, he has always seen Hermione as a friend, and suddenly finding out she's his twin would turn his world upside down. He could feel a mix of confusion, excitement, and also a bit of unease as he tries to understand how this could be possible and what it means for their relationship and his own identity.

Well, perhaps Hermione would then encourage Harry to spend more time with Ginny. This could lead to some cute moments between Harry and Ginny, like going on small adventures together. And there might be some jealousy from other characters who also like Ginny.

Maybe a magical accident or a powerful spell that revealed the truth.

One possible plot development could be that Harry first goes into denial. He has grown up thinking his situation was normal. But as he realizes he's been abused, he might start to distance himself from those who have been part of the abuse, like the Dursleys. He could then seek out help from his friends at Hogwarts, like Hermione and Ron. They would support him, and together they might try to find a way to deal with the emotional and psychological trauma he has endured.

In this fanfic, perhaps Harry stumbles upon the portraits while exploring a hidden part of Hogwarts. He might have an emotional moment as he sees his parents for the first time in this way, and the portraits could start interacting with him, sharing long - lost memories and advice.

One possible plot could be that Harry and Hermione travel the wizarding world together, documenting all the post - war changes. They might visit Hogwarts, which is being rebuilt, and help in the restoration process, reminiscing about their old school days as they do so.

In this fanfiction, it could be that Hermione attends a wizarding symposium where the Zabini family is presenting some of their ancient magic. She is initially skeptical but as she listens to their presentation, she becomes intrigued by their knowledge and the way they approach magic. She starts to research more about them on her own, finding out about their famous ancestors and their influence in different areas of the wizarding world. As she delves deeper, she realizes she has a newfound respect and admiration for the Zabini family, thus becoming a fan.

He might be shocked at first. Discovering that he isn't a Potter is like shattering his whole identity. He could feel lost and confused, not knowing who he really is anymore.

Harry would likely be stunned. His world has been turned upside down. He might initially be in denial, thinking it's some sort of cruel joke or a mistake. But as he starts to accept it, he may feel a new sense of connection to Blaise. He could start to see Blaise in a whole new light, noticing similarities in their personalities or abilities that he hadn't before. And he would probably be eager to learn more about their shared heritage and what it means for their future together.

Draco might initially be shocked. He could then feel a sense of protectiveness towards Harry. Maybe he starts to see Harry in a new light, not as his rival but as someone who needs help.