In a post - war scenario, Harry's sister is involved in the rebuilding of Hogwarts. Draco is also there, trying to make amends for his family's actions. They are assigned to work on a project together, like restoring a part of the castle. At first, they are hesitant around each other, but as they talk more about their pasts, their families, and their hopes for the future, they fall in love.
Maybe Harry's sister has a secret talent for Quidditch that Draco discovers. He convinces her to try out for the Slytherin team. As they practice together, they start to develop feelings for each other. However, they have to keep it a secret from Harry and the rest of the Gryffindors and Slytherins who might not approve. This could lead to a lot of sneaking around and close calls.
One plot idea could be that Harry's sister is sorted into Slytherin, which causes a rift with Harry at first. She then befriends Draco Malfoy because they are in the same house. They start off as study partners, slowly realizing they have more in common than they thought, like their love for potions. Their friendship grows despite the enmity between Harry and Draco.
One idea could be a story where Scorpius discovers a long - hidden family secret that Draco has been trying to protect him from. It could involve some dark magic from their family's past.
One interesting plot idea could be that Draco's sister is secretly a supporter of the Order of the Phoenix. She might be in a difficult position, having to hide her true beliefs from her family while trying to help the good side in the wizarding war. Another plot could involve her having a special magical ability that she has to keep hidden from everyone, including Draco. Maybe she can communicate with magical creatures in a way no one else can, and this ability ends up being crucial in a battle or a quest to save Hogwarts.
One idea could be that Female Draco, being a Slytherin, is initially at odds with Harry but then they are forced to work together on a secret project to save Hogwarts from a new dark threat. This would involve them gradually getting to know each other better and realizing they have more in common than they thought.
One idea could be that Harry is sorted into Slytherin instead of Gryffindor. He then has to deal with the prejudices within his own house as well as from other houses. Draco could initially be hostile but then they gradually become friends as they discover they have more in common than they thought, like their ambition and a desire to prove themselves. They could team up to solve a mystery within the Slytherin common room that is linked to the dark history of the house.
A possible plot for Draco Malfoy childhood fanfiction is his secret love for something that goes against the Malfoy image, like a Muggle - like hobby. This could create internal conflict within him. Another idea is his experience during the first time he used a broomstick. It could be a story of his excitement and determination to be good at it, but also his fear of failure. And a third one could be about how he coped with the news of having to go to Hogwarts, whether he was eager or reluctant.
One plot idea could be that Draco Malfoy accidentally stumbles into the Muggle world and meets a Muggle who is a huge fan of the wizarding world through books. The Muggle helps Draco see the beauty in the Muggle way of life, and Draco in turn shows the Muggle some magic in a very secretive way. They form an unlikely friendship that challenges Draco's pure - blood beliefs.
A great plot could involve Draco being forced to team up with a group of Ravenclaws for a special project at Hogwarts. At first, he's reluctant, but as he gets to know them, he begins to appreciate their different way of thinking. Maybe they're all trying to solve a mystery that has been plaguing the school, and Draco's Slytherin cunning combined with the Ravenclaws' intelligence makes for an exciting adventure.
Another plot could involve Harriet getting into trouble and Draco, surprisingly, coming to her rescue. This could be in a situation where she's wrongly accused of something by other Slytherins. Draco defends her because he has secretly started to admire her courage, which is different from the Slytherin values he was brought up with.
A really interesting plot could be that Draco's transformation into a girl is part of a bigger magical mystery. She starts to notice strange things happening around Hogwarts that seem related to her change. As she tries to figure out what's going on, she teams up with unlikely allies from different houses. Along the way, she also has to deal with the prejudice and confusion from some of the wizarding community who don't understand or accept her new identity.
One idea could be a post - war story where Astoria helps Draco heal from the traumas of the war. They could start by bonding over their shared Slytherin heritage and gradually fall in love as they work through their inner demons.