Well, if Misato betrays Shinji, she could herself become the main antagonist, at least from Shinji's perspective. Her actions of betrayal would put her in direct opposition to Shinji's goals and well - being.
One possibility could be that Misato betrays Shinji in the context of a mission. Maybe she has been influenced by some external force, like a secret organization within Nerv. She might sacrifice Shinji's safety for what she believes is the greater good of humanity, but Shinji sees it as a betrayal.
The Konoha elders could be the main antagonists. They are often shown to be quite traditional and set in their ways in the original series. If Naruto goes against their old - fashioned ideas about the village's future and ninja code, they would likely oppose him strongly and could be the driving force behind making Naruto an outcast, which in turn could lead to his 'betrayal'.
It could be a new villain that we haven't seen in the original Marvel universe. This villain might be able to manipulate Natasha's emotions and loyalty, making her betray Tony. For example, a powerful sorcerer who uses dark magic to control her.
Voldemort himself could be the main antagonist in this scenario. He might offer Hermione something she desperately wants in exchange for her betrayal. Maybe he promises to spare her Muggle - born friends if she gives up the Order's plans and secrets. His powerful and intimidating presence could easily force Hermione into a difficult situation where she feels she has no choice but to betray.
If Rias betrays Naruto, she herself could potentially be the main antagonist. Since Naruto is usually seen as a protagonist, Rias' actions of betrayal would put her in direct opposition to him. Her motives and actions would then drive the conflict in the story.
It gives fans a new perspective on the characters. They can see Shinji and Misato in different situations and relationships, which can spark discussions among fans.
The relationship between Shinji and Misato in fanfic can take many forms. One common aspect is the contrast between their personalities. Shinji is often shy and introverted, while Misato is bold and outgoing. This contrast can create interesting situations where they influence each other. For example, Misato might encourage Shinji to be more confident, and in turn, Shinji's innocence could make Misato re - evaluate some of her own actions. Fanfic writers use this relationship to explore different emotional and psychological aspects within the Neon Genesis Evangelion universe.
It could be a super intelligent pirate who has been secretly controlling events in the One Piece world. This antagonist might be several steps ahead of everyone, creating elaborate plans to take over the Grand Line. Luffy, with his newfound intelligence, has to match wits with this foe.
The main antagonist could be a mean-spirited mole. This mole is constantly digging tunnels under the garden and causing chaos. He doesn't like Gnomeo and Juliet's love because he believes it's disrupting the natural order of the garden. He tries to separate them by causing misunderstandings between their families.
An organization that believes in using Pokemon for dark magic could be the main bad guy. They see Iris and her Pokemon as a threat to their plans, so they constantly try to stop her. They might have their own powerful, corrupted Pokemon that they use to battle Iris. They could also be stealing Pokemon from other trainers to use in their dark experiments.