What are some interesting plotlines in 'the dark below fanfiction'?

One interesting plotline could be the dark apprentice's struggle between loyalty to their master and their own sense of right and wrong. They might be given tasks that go against their moral code, leading to internal conflict.

One possible plotline could be a darker version of their quests. For example, instead of simply fighting monsters to save the world, they might be forced to make morally ambiguous choices. Maybe they have to sacrifice some innocent bystanders to defeat a greater evil. Another could be a power struggle between them where their darker sides come out. Percy could be more power - hungry and Annabeth more calculating in a way that challenges their friendship.

One possible plotline could be that Harry is influenced by a dark artifact. For example, he discovers a cursed object that slowly corrupts his mind, making him turn against his friends. He might start to use dark magic to achieve his goals, believing that the end justifies the means.

One interesting plotline could be the discovery of a new and powerful dark fire jutsu that only a select few can master. This jutsu might have unforeseen consequences on the ninja world, like disrupting the balance of power among the villages.

One possible plotline could be Ginny being influenced by a dark magical object that makes her turn against Harry. This could lead to a series of conflicts as Harry tries to figure out what's wrong with her and how to save her. Another plotline might involve Harry and Ginny being caught in a dark prophecy that forces them to make difficult choices that seem against their nature. For example, they might have to choose between saving each other or the wizarding world.

One interesting plotline could be a deeper exploration of the relationship between Ruby and Weiss. Maybe in the fanfiction, they face a new and powerful enemy together that forces them to rely on each other more than ever, strengthening their bond in ways not seen in the original series.

One interesting plotline could be the dark swordsman's origin. Maybe he was once a regular ninja who was betrayed and then turned to the dark side, finding power in the art of the sword. Another could be his interactions with the main Naruto characters. For example, his battles with Sasuke, where they both have different sword - based fighting styles, which could lead to some epic showdowns.

One possible plotline could be the Dark Lady's journey to gain ultimate power. She might start by gathering a group of loyal followers, each with their own unique abilities. Another could be her facing off against an ancient prophecy that foretells her rise but also her potential downfall. And she could also have a complex relationship with a hero figure who tries to stop her but also starts to understand her motives.

Perhaps she forms a unique bond with other female characters. For example, she might team up with Sakura in a different way, sharing more emotional and strategic moments. Since she is Dark Naruto, she could bring out a different side of Sakura as well. They could explore their own powers and how to use them to protect the village together.

One interesting plotline could be Spider - Man having to operate secretly under the Dark Reign regime. He might have to find new ways to help the people of New York without getting caught by Norman Osborn's forces.