Perhaps Draco is falsely accused of a serious crime and is about to be sentenced to a harsh punishment in the wizarding world. Hermione, believing in his innocence, undertakes a dangerous mission to find evidence that will clear his name. She delves into old wizarding archives, faces some of Draco's old enemies who want to see him go down, and finally manages to present the evidence just in time to save Draco.
Perhaps in a post - war scenario in both the 'Harry Potter' and 'Mortal Instruments' universes, Hermione and Draco decide to collaborate on a project to bridge the gap between the two magical communities. Along the way, they face opposition from traditionalists in both worlds who don't want the two communities to mix. Their relationship could develop from reluctant partners to something more as they fight for their cause. This would involve a lot of character growth, exploring new magical concepts, and dealing with the politics of both worlds.
One plot idea could be that in a battle against a dark wizard, Draco jumps in front of a deadly curse meant for Hermione. This could lead to Hermione feeling a deep sense of guilt and obligation towards Draco's family. Another idea is that Draco sacrifices himself to save Hermione from a dangerous magical experiment gone wrong in Hogwarts. His death then spurs Hermione to find a way to reverse time or find a magical cure in his memory.
One plot idea could be that Draco kidnaps Hermione under the influence of a dark spell. He takes her to an old, abandoned manor. Hermione, being the intelligent witch she is, tries to find a way to break the spell on Draco while also trying to escape. She might start by using her knowledge of potions and magic to create a counter - spell.
Maybe Draco discovers that Severus is being framed for a crime he didn't commit. He then approaches Hermione for help as she is known for her intelligence and problem - solving skills. Together, they start to gather evidence to clear Severus's name and also protect him from those who want to harm him.
One idea could be that their child discovers a hidden magic that neither of their parents were aware of. This magic could be a key to solving an ancient mystery in the wizarding world. Another plot could be the child having to navigate the social difficulties of being the offspring of two former rivals, facing prejudice from some pure - blood families who still hold grudges against Hermione for being a Muggle - born.
One plot idea could be that Draco and Hermione are rival CEOs in the wizarding business world. They start off hating each other due to their different management styles and company loyalties. But then, they are forced to work together on a project to save the wizarding economy. As they spend time together, they begin to understand and respect each other, and eventually fall in love. Another idea is that they are co - CEOs of a newly formed, progressive wizarding company that aims to bridge the gap between pure - blood and Muggle - born wizards in the business realm. Along the way, they face opposition from traditionalist wizards but they fight it together and their relationship deepens.
One idea could be that Draco and Hermione's baby has unique magical abilities that draw the attention of both the wizarding world's good and bad elements. The baby might be able to communicate with magical creatures in an extraordinary way, leading to adventures where they have to protect the baby from those who want to use its power for evil.
A possible plot is that Draco, who is in Slytherin, discovers a hidden secret about Hermione's family that has ties to Slytherin. This makes him see her in a new light and they start to form an unlikely alliance. They could then face challenges from their respective houses. Another plot idea is that in an alternate universe, Hermione is sorted into Slytherin and she and Draco become friends and then something more, as they strive to change the negative perception of Slytherin from within.
In a fanfiction plot, there could be a situation where Hermione and Draco are both cursed. The only way to break the curse is to work together and learn to trust each other completely. They have to rely on each other's unique magical abilities. Along the way, they share their deepest secrets and fears, which brings them closer together. By the time they break the curse, their relationship has transformed from one of enmity to something more like friendship, with the potential for more.
In some fanfictions, there could be a time - travel plot where Draco and Hermione from different timelines end up together and Hermione gets pregnant. This would involve dealing with the consequences of changing the timeline as well as their relationship dynamics.