Who could be the main antagonist in 'naruto has hidden blades fanfiction'?

It could be a rogue ninja who was once part of the same clan that the hidden blade belongs to. He wants the blade back to gain ultimate power and is willing to do anything to get it from Naruto.

It could be Orochimaru. He is always seeking power, and the Blades of Exile would be a great addition to his collection. He would stop at nothing to get his hands on them, using his devious tactics and his army of minions.

It could be a rogue ninja from a forgotten clan who is jealous of Naruto's new - found power from his hidden bloodline. This antagonist might try to steal Naruto's bloodline ability for himself.

It could be a rogue ninja from another village who wants to use the demon within Naruto for his own evil purposes. He might be power - hungry and sees Naruto as a tool to gain control over the Hidden Leaf and other ninja villages.

A great main villain could be a rogue demigod who has found a way to corrupt the power of the hidden blades. This demigod could be jealous of Percy's fame and power and uses the blades to create chaos among the demigod community. He might be using the blades to steal the powers of other demigods, making him stronger with each theft.

Perhaps in this fanfiction, the hidden blades are not just normal weapons. They could be imbued with some sort of special chakra or magic. This would make them more powerful and give Naruto an edge in battles against stronger opponents like Pain or Madara.

It could be a powerful ninja who wants to capture the fox brother for his own purposes. Maybe he believes that the fox brother's powers can be used to take over the ninja world. This antagonist might be from a rival village or a secret organization within Naruto's own village.

It could be a rogue ninja who also has a rare bloodline and sees Naruto as a threat to his own power and status. This antagonist might want to steal Naruto's bloodline or simply eliminate him to be the only one with such a special ability.

Perhaps the main antagonist is a dark figure from within Konoha itself. This person doesn't want Naruto's family to be reunited because it could expose some dark secrets about their own actions in the past. They would do anything to keep the sister hidden and Naruto in the dark, even if it means causing harm to both of them.

It could be a relative of one of Naruto's old foes. For example, a nephew of Orochimaru who has been taught by Orochimaru's remaining followers. He might be jealous of the peace Naruto has brought and wants to disrupt it by targeting his kid.