What could be the plot of a fanfiction where Harry is Tom's father?

Perhaps Tom Snape is a long - lost relative of Harry's father. In the fanfic, they meet by chance in the wizarding world outside of Hogwarts. They initially have some misunderstandings due to their different personalities and family backgrounds. But as they face some common enemies, like a group of dark wizards, they gradually form a bond and work together to protect the wizarding world. And along the way, they discover secrets about their family and Hogwarts that were previously unknown.

The fanfiction could explore a world where Harry, as Tom's godson, is initially unaware of Tom's true nature. Tom could be presenting himself as a benevolent figure in Harry's life. However, as Harry grows older and starts to learn more about magic and the wizarding world's history, he begins to suspect that there's more to his godfather than meets the eye. This suspicion could drive Harry to investigate Tom, and along the way, he forms alliances with other characters to face whatever threat Tom might pose.

Perhaps the fanfiction could be set in a magical world. Harry, having some special powers, has to protect Rose from various threats. He teaches her how to use magic or special skills. Along the way, their relationship deepens, and they form an unbreakable bond. There could be adventures and mysteries that they solve together as father and daughter.

At first, it could be very strained. Tom might be resentful or confused about having Harry as a father all of a sudden. But as time goes on, if Harry shows love and support, Tom could start to warm up to him. For example, Harry could help Tom with his schoolwork or magical training.

Well, it could be that Tom, as Harry's uncle, secretly has magical powers of his own. Maybe he's been in hiding all these years. He could emerge to protect Harry from some new dark force at Hogwarts. For example, a new group of dark wizards that the regular teachers can't handle.

One possible plot could be that Loki, for some reason, was banished to the wizarding world long ago. He fell in love with a witch and had Harry. As Harry grows up, Loki reveals himself and starts training Harry in a more unorthodox form of magic. Along the way, they have to face the Ministry of Magic's suspicion as Loki's actions are often hard to understand. Also, they would have to deal with Voldemort, with Loki using his cunning to outwit the dark wizard.

In this fanfiction, a great plot twist could be related to the origin of Harry's powers. If Tom is his father, it could be revealed that Harry's power is not just from his mother's sacrifice but also from some unique magic that Tom passed on. This could lead to a situation where Harry has to learn to control this new aspect of his magic that he never knew about before. It might also cause conflict within the wizarding community as they question whether Harry is truly on their side, given his newfound connection to Tom.

In this fanfiction, perhaps there's a prophecy involved that ties their fates together in this strange way. The story could show how they try to protect the child from those who might want to harm it. There could be elements of mystery as they try to figure out the true nature of the child's magic, which might be a combination of their powers. Also, the relationship between Harry and Tom could transform from enmity to a more complex bond as they are about to become parents.

Well, it could be about Harry Potter finding a way to enter Tom Riddle's world in the fanfiction. Maybe he's on a mission to change Tom's path to the dark side.

One possible plot could be that Harry has a past that he's unaware of, and it turns out he has a son in another dimension, which is Tsuna. Harry then embarks on a journey to Tsuna's world. Along the way, he meets different characters from Tsuna's story. He might have to learn about Tsuna's world and its rules. He could also teach Tsuna some of his magic, and together they face challenges like the threats from the mafia in Tsuna's world. Harry would be trying to build a relationship with Tsuna, who is initially confused but gradually warms up to having a father.