Who are the main antagonists in ichigo and orihime time travel fanfiction?

In some fanfictions, a powerful Hollow could be the main antagonist. It might target Orihime because of her special powers and Ichigo has to protect her while also dealing with his new - found feelings for her. The Hollow could be constantly attacking them, trying to separate them.

Some fanfictions might introduce new characters as antagonists. These could be rogue Quincy who believe that Ichigo and Orihime's relationship is a threat to their plans for the spiritual world. They try to separate them to gain an upper hand in their schemes.

In some fanfictions, they might time travel to an era where the Quincy were more powerful. Ichigo, being part Quincy, might have to face some difficult decisions regarding his heritage. Orihime would be there to support him, and together they could end up changing the course of history between the Shinigami and the Quincy. This could lead to a completely different world in the present, with new alliances and enmities.

The Soul Reapers could be antagonists if they view Ichigo's vampirism as a threat to the balance between the living and the dead. They might try to hunt him down to eliminate this new, unregulated force.

A powerful rogue Soul Reaper could be an antagonist. This Soul Reaper might be jealous of Ichigo's new - found time - control ability and try to steal it for his own dark purposes. Maybe he wants to use it to rewrite history in his favor, eliminating all those who opposed him in the past. Another potential antagonist could be an ancient and evil entity that has been trapped in a time - locked dimension. Ichigo's use of time - control accidentally releases this entity, and it now wants to use Ichigo's power to break free completely and wreak havoc on the world. There could also be a group of Quincy who see Ichigo's power as a threat to their own plans of taking over the spiritual world. They try to stop him from using his time - control ability by any means necessary.

It could be some of the historical villains from Naruto's past that were thought to be long gone but are now resurfacing due to the time travel. For example, Madara Uchiha might be an antagonist if they travel back to a time when he was still active and plotting against Konoha.

In some cases, time itself or the consequences of changing time could be seen as an antagonist. For example, if they try to change a major event, they might face unforeseen consequences like creating new threats or endangering the future they came from. So, in a sense, the very fabric of time and its rules could be working against them.

It really depends on the specific fanfiction. However, it could be that they travel back to a time when Orochimaru was at his most devious, so he would be a main antagonist. His experiments and thirst for power could pose a great threat to Naruto and Shikamaru's mission in the past.

Often, it could be the same antagonists from the original Naruto series but in a different context. For example, Orochimaru might still be an antagonist if he tries to use the time - travel situation to his advantage, like getting his hands on some ancient forbidden jutsu.

It might also be time itself. There could be some sort of time - related magic or force that doesn't want the past to be changed. So Harry and Tonks would have to face this 'antagonist' as they try to rewrite history. This could be in the form of time - locked spells or magical barriers that prevent them from interfering in certain events.