Fanfiction about Harry Styles' baby sister: What are some interesting plot ideas?

A possible plot for tmnt baby sister fanfiction is that the baby sister finds an ancient artifact that has a connection to the turtles' heritage. This artifact might give her some new abilities or put her in danger as various forces try to take it from her. Maybe she befriends a stray animal that turns out to have some kind of magical or otherworldly connection. The turtles are initially skeptical but then realize that the animal is actually helpful. Additionally, the baby sister could get involved in a school project about mutants which leads to some unexpected revelations about her brothers and their place in the world.

One plot idea could be Sirius escaping Azkaban earlier and secretly taking care of baby Harry. He could teach Harry magic in hiding, away from the Dursleys. Another could be Sirius using his animagus form to be close to baby Harry without being detected, like a secret guardian watching over him at all times.

One possible plot idea could be Harry coming home to his hometown after a long tour and reuniting with his childhood friends. They might have a big party to celebrate his return and he could share all his amazing experiences from the tour.

One idea could be that Percy's baby sister discovers she has a unique power that even Percy doesn't have. For example, she might be able to communicate with the spirits of the ancient Greek heroes in a way that gives her special knowledge. Another plot could be that she gets kidnapped by a new enemy who wants to use her to get to Percy. Percy then has to go on a dangerous quest to rescue her, facing all kinds of mythical creatures along the way. A third idea is that she is actually a reincarnation of an important figure from Greek mythology, and as she grows up, she starts to remember her past life and the secrets it holds, which causes a stir in the demigod world.

One idea could be that Isaac's baby sister discovers she has a special power. Maybe she can communicate with animals and it causes all sorts of chaos and also helps in unexpected ways. For example, she might use this power to find a lost pet in the neighborhood which makes her a local hero among the kids.

One idea could be that as a baby, Harry has some adult - like wisdom and he starts to subtly influence the adults around him in Hogwarts. For example, he might give Dumbledore some deep insights about the future of the wizarding world that Dumbledore hadn't considered before.

One idea could be that Harry and Draco find an abandoned magical baby and they have to work together to take care of it. This forces them to put aside their differences and learn about each other in a new way.

One idea could be that Harry and Daphne's baby has some unique magical abilities that are a combination of their genetics. For example, the baby might be able to communicate with magical creatures in a way that neither Harry nor Daphne can. Another plot could be centered around the challenges they face as new parents in the wizarding world, like dealing with over - protective relatives or the paparazzi - like wizarding press.

Usually, their relationship is depicted as very loving and protective. Harry is often shown as being very proud of his baby sister and looking out for her. He might be the one to take her to school events or be there for her when she has a bad day.

Well, perhaps Harry's sister is a bit of a troublemaker. She could accidentally get into a feud with one of the Slytherin students, and Harry has to step in to keep the peace. Or she could be really good at a subject that Harry struggles with, like Potions, and she helps him improve his skills. She might also have a secret admirer among the students, which could lead to some interesting and humorous situations.