Who could be the main antagonist in a Deer Dipper x Hunter Bill fanfiction?

Obviously, Bill could be the main antagonist. Since he's the one who turns Dipper into a girl, he's likely up to no good. His motives are usually self - serving and evil, so he would probably be causing more trouble for Dipper and the other characters in Gravity Falls.

Maybe Deer Dipper discovers a hidden power within himself that Hunter Bill is interested in. Hunter Bill tries to manipulate Deer Dipper into using this power for his own evil plans, but Deer Dipper resists and tries to turn the tables on him. Along the way, they encounter various otherworldly creatures and challenges that test their relationship.

Another possibility is that some of the other supernatural beings in Gravity Falls could be the antagonists. They might see Dipper's association with Bill, even as a human, as a threat to the balance in the town. For example, the gnomes or the manotaurs could oppose their friendship and try to drive them apart, seeing Bill as a potential source of chaos no matter his form.

It could be a rogue hunter who has his own twisted ideas about the use of Nen. This hunter might see Pokkle and Ponzu as obstacles in his quest for power and knowledge. He could try to capture them to steal their Nen abilities or the information they have about certain areas of the Hunter x Hunter world.

There could also be a corrupt official within the Hunter's Guild. This person doesn't like the way the Handler and Hunter are operating, perhaps because they are too independent or they are getting in the way of some underhanded scheme the official has. So, this official uses their power to try and undermine the duo, from withholding resources to sending them on extremely dangerous and near - impossible missions.

Dipper is sure to be a main character. As for Bill's gang, it could include Bill Cipher, who is the mastermind behind most of the chaos. There might also be some of his minions like Pyronica or Keyhole. These characters would interact with Dipper in various ways, creating the drama and action in the fanfiction. For example, they could be trying to capture Dipper or deceive him in some way.

Dipper is often the more cautious one. He's driven by his curiosity but also his sense of right and wrong. So in time travel scenarios, he might be trying to ensure that the timeline doesn't get too messed up. For example, if they travel to the past, he'd be the one warning Bill not to do things that could have major negative consequences.

The 'yandere bill x dipper fanfiction' can be quite interesting. Yandere characters are characterized by their extreme jealousy and possessiveness. So, if Bill is the yandere in this scenario, he would likely go to great lengths to keep Dipper all to himself. This could lead to all sorts of conflicts, both internal and external. For example, Dipper might struggle with his own feelings towards Bill while also having to deal with Bill's overbearing and sometimes dangerous behavior.

Well, in such a fanfiction, one aspect could be the visual changes. If Dipper is genderbent, there would be a different appearance which could influence how Bill perceives and interacts with this new version. It could also lead to different story arcs. For instance, their relationship might start in a more unexpected way due to the change in Dipper's gender. It might attract readers who are interested in exploring different takes on the characters' relationships and identities within the Gravity Falls universe.

There could be a group of poachers who are not just after regular game but are also involved in some dark magic. They oppose the hunters and especially Percy when he tries to stop their illegal and dangerous activities. They might have powerful backers or magic items that make them a formidable foe for Percy and the other hunters.