One idea could be that they are forced into an arranged marriage for some magical political reason. At first, they dislike each other but as they start to understand the other's past and insecurities, they gradually fall in love. For example, Hermione could learn about Draco's fear of not living up to his family's expectations and Draco could see Hermione's struggles in the wizarding world as a Muggle - born.
Another plot could be a time - travel scenario. Hermione accidentally travels back in time and ends up changing some events that lead to Draco having a different outlook on life. This new Draco is more open - minded and they end up getting married in this alternate timeline. Their relationship is then a mix of Hermione's modern - day sensibilities and Draco's altered, more positive view of the wizarding world.
One idea could be them having to deal with the reactions of their friends and family. For example, Harry's friends from Gryffindor might be initially shocked but then come to accept it as they see how happy Draco and Harry are together. Another plot could involve them facing some sort of magical mystery or threat that only their combined skills can solve, which also strengthens their bond as a married couple.
One idea could be that they face opposition from some in the wizarding world who still hold onto the traditional views of pure - blood and half - blood relationships. They then have to fight to prove that their love is stronger than these archaic beliefs. Another plot could involve them having to deal with a new dark threat while also planning their wedding, adding a lot of tension and drama to the story.
One idea could be a story that focuses on their wedding planning. Hermione wants a small, intimate ceremony, but Ron's large family has different ideas. It could be filled with humorous moments like Ron trying to keep the peace between Hermione and his mother. Another plot could be set after their marriage, where they go on a magical honeymoon and discover a new, hidden magical place. They could have adventures there and learn more about each other in the process.
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.
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.