Well, in certain fanfictions, Harry's journey into necromancy could lead to him being ostracized by the wizarding community. The Ministry of Magic could get wind of his activities and see him as a threat. Meanwhile, he might be learning from some unexpected mentors, perhaps a reclusive old wizard who has a different view on necromancy than the mainstream wizarding world.
One possible plot development is that Harry discovers ancient texts about necromancy in the restricted section of the Hogwarts library. As he delves deeper, he may encounter dark forces that try to manipulate him into using necromancy for evil purposes. His friends, especially Hermione, might notice his strange behavior and try to figure out what he's up to.
In some of these fanfictions, Harry might start exploring the dark art of necromancy secretly. He could be driven by a desire to bring back his lost loved ones, like his parents. This often leads to him having to hide his newfound interest from his friends at Hogwarts, creating a lot of internal conflict as he struggles between what he knows is right and his longing for his family.
Often, Harry as a lord may have to deal with the political side of the wizarding world. He might face opposition from the old pure - blood families who don't want a 'half - blood' lord to have so much power. So, there could be a lot of intrigue and power struggles in the story.
One interesting plot development could be that Harry uses his new status as master of death to bring back some of the fallen characters, like Sirius Black or Fred Weasley. He might be able to rewrite some of the fates that were sealed during the war.
A possible plot for 'Harry Potter as a Necromancer' fanfiction is that there is a hidden necromancy school within Hogwarts that only reveals itself to those with the true potential for necromancy. Harry stumbles upon it and is drawn into a world of dark magic and secrets. He has to learn how to control his necromantic powers while also dealing with the internal struggle of whether this magic is truly evil or if it can be used for good. His friends might be divided in their opinions, with some supporting him and others fearing his new abilities.
In this fanfiction, it's likely that Harry's newfound lordship at age 7 will have a significant impact on his relationship with the Dursleys. They might be even more intimidated by him, or perhaps they try to take advantage of his new status in some way. Harry, on the other hand, could use his new power to free himself from their abuse and start living a more independent life within the wizarding world. He may also discover new magical abilities or artifacts associated with his Potter heritage that help him in his journey.
Well, one possible plot development could be that Harry has to hide his new status as an Obscurial from his friends at Hogwarts for fear of being ostracized or worse. Another could be that Voldemort somehow discovers Harry's new condition and tries to use it to his advantage, perhaps by trying to manipulate the Obscurial power within Harry. Maybe Harry has to learn to control this new, dangerous power on his own as he can't trust Dumbledore or the other teachers with this secret at first.
Well, perhaps one interesting development could be Harry exploring the new powers and responsibilities that come with being a lord. He might use his new status to reform the wizarding world in ways he couldn't before as just a student.
One idea could be Harry, as a dark necromancer, using his newfound powers to bring back some of the great wizards from the past to learn from them, but the magic has unforeseen consequences like attracting dark entities. Another could be that he's on a quest to revive a loved one, which goes against the natural order of magic in the wizarding world and causes a rift between him and his friends.
In the fanfiction, it could be that Harry faces opposition from some powerful wizarding families who don't want him as high king. They might try to undermine his rule through various means such as spreading false rumors or plotting against him. Harry would then have to prove himself worthy and strong enough to maintain his position.
One interesting plot could be Harry struggling to fit in with the Slytherin ideals at first. He might be constantly at odds with some of the more traditional Slytherin values like pure - blood supremacy. But then he could gradually change the house from within, making his Slytherin peers see that not all Gryffindor traits are bad and vice versa.
In some of these fanfictions, Harry might gain god - like powers and use them to reshape the wizarding world. For example, he could end all forms of dark magic at once. Maybe he uses his newfound divinity to bring back lost loved ones, like his parents, in a way that doesn't disrupt the natural order too much.