In this fanfiction, it could be that Harry's act of adopting Tom causes a huge stir in the wizarding world. Some might be against it, fearing that Tom will still turn out to be a dark wizard. But Harry is determined. He takes Tom under his wing and tries to expose him to different cultures and ideas within the wizarding world. As a result, Tom starts to question the beliefs that would have otherwise led him to become Voldemort.
Perhaps in the fanfiction, Harry adopts Tom Riddle when he's still a young boy at the orphanage. Harry then uses his own experiences of growing up without parents to bond with Tom. He teaches Tom about magic in a different way than Dumbledore did, focusing on the positive aspects of magic for good. This could lead to Tom not becoming the evil Voldemort we know.
One possible plotline could be that Harry, having seen the destruction Tom Riddle caused as Voldemort, decides to take young Tom under his wing to prevent him from going down that dark path. He could introduce Tom to the love and friendship he never had, like the friendships Harry formed at Hogwarts. This new environment and positive influence might change Tom's view of the world.
One possibility is that Harry, having seen the dark path Tom Riddle took, decides to take him in early. He might teach Tom about love and friendship, things he lacked growing up. Harry could introduce Tom to the wizarding world in a more positive light, showing him the joys of Hogwarts and the value of good relationships, thus preventing him from turning into Voldemort.
One common theme is redemption. Since Tom Riddle later becomes Voldemort, the idea of fem Harry being able to change his path and redeem him is often explored. It gives a sense of hope that even the darkest of characters can be saved.
One possible plotline could be Harry initially resists the idea of being Tom Riddle's submissive mate but gradually finds himself drawn to Riddle's power and charisma in a complex way. Maybe they are forced to work together against a common enemy and during that time, their relationship evolves.
A plotline could involve them going on adventures outside of the wizarding world. They could travel to different magical realms, encountering strange creatures and magic systems. Along the way, they learn more about each other's strengths and weaknesses. Harry might learn from Tom how to be more strategic, and Tom could learn from Harry about the importance of loyalty and friendship. Their friendship could be tested in these new and dangerous situations, but ultimately it could grow stronger.
At first, it might be rocky. Tom would be suspicious of Harry's intentions. But as Harry shows him genuine care, Tom would start to open up. Eventually, they could become like family, with Tom looking up to Harry as a role model.
One possible plotline could be Harry seeing the potential for good in Tom even though he knows of Voldemort's future. He might try to raise Tom with love and kindness to change his path. For example, Harry could introduce Tom to the wizarding world in a more positive light, showing him the beauty of magic for good rather than for power.
As the story progresses, their relationship could become more complex. Harry might become a father figure to Tom, teaching him right from wrong. Tom, on the other hand, could start to see Harry as someone he can rely on, but also struggle with his own inner demons that might pull him away from Harry's influence.
Well, perhaps in this fanfiction, Harry adopts Tom Riddle Jr after a time - travel incident. Harry realizes that by changing Tom's upbringing, he can prevent the rise of Voldemort. He takes Tom under his wing and shows him the value of family. Tom, growing up with Harry, starts to develop different values. He becomes interested in protecting the wizarding world rather than ruling it. This could lead to a completely different wizarding world where the threat of Voldemort never really existed.
One possible plotline could be that Harry starts to show an interest in dark magic like Tom Riddle did. Maybe he becomes overly ambitious in his studies, trying to outperform everyone in a way that borders on the obsessive competitiveness that Riddle had. Another could be that Harry begins to isolate himself from his friends, just as Riddle did when he was at Hogwarts, as he delves deeper into the knowledge that Riddle once pursued.