The plot might involve a love - hate relationship. Villain Deku has his own motives and plans, and Fem Bakugou is in his way. But at the same time, there could be a past connection between them that resurfaces. For example, they could have been childhood friends before Deku's turn to villainy. This connection could make their encounters more complex and emotional. Bakugou could be torn between her duty as a hero - in - training and her feelings for Deku. And Deku, despite being a villain, might still have some soft spot for Bakugou which could lead to some internal conflict within him as he tries to carry out his villainous plans.
Villain Deku would likely be very manipulative towards Fem Bakugou. He might try to use her anger and pride against her. For example, he could taunt her about how the hero system has failed her in some ways, making her question her loyalty. Bakugou, on the other hand, would probably respond with aggression at first. She would not take kindly to Deku's villainous ways and would try to attack him. But as she realizes Deku has some valid points about the hero system, she might start to listen more and their interactions could become more of a debate rather than just physical combat.
One idea could be that Deku, turned villain, challenges Bakugou's view of heroism. He could expose the flaws in the hero society that Bakugou blindly believes in. For example, Deku might target the way heroes are ranked and how it creates a cut - throat environment. This would force Bakugou to re - evaluate his own pursuit of being the top hero.
One popular plot idea is them working together on a difficult mission. They have to put aside their differences and combine their powers. Another is a story where Bakugou realizes his true feelings for Deku and struggles with how to express them. A third could be a fanfic where they are transported to an alternate universe and have to rely on each other to get back home.
In a Deku villain fanfic, perhaps Deku could form an alliance with some of the existing villains in the Boku no Hero Academia world. He might see potential in them that the heroes overlook. He could team up with Shigaraki, believing that together they could reshape the world into a more 'fair' place, according to his now - twisted view.
To develop their relationship realistically, start with their existing dynamic. Bakugou is often aggressive towards Deku, so a slow change is needed. Maybe have them be forced to team up. As they face challenges together, Bakugou could start to respect Deku's abilities bit by bit. For example, if they are in a battle against a powerful villain and Deku comes up with a clever strategy, Bakugou might grudgingly admit Deku's smarts.
One aspect of Deku x Bakugou fanfiction is the exploration of their complex relationship. In the original series, they have a history of rivalry and conflict. Fanfiction often delves into how they might overcome these issues and develop a deeper bond. It could be through shared experiences in battles or personal growth moments. Writers might show Bakugou learning to respect Deku's growth and Deku seeing Bakugou in a new light.
Frustration could be a major motive. He has faced so much hardship in his journey to become a hero, from not having an initial quirk to being constantly put down. This built - up resentment could turn him into a villain.
One common theme is rivalry. Their long - standing competitive relationship is often explored further in fanfiction. Writers like to show how they constantly try to outdo each other in different ways. Another theme is friendship. Despite their rough start, many fanfictions focus on how they gradually become friends or at least learn to respect each other more.
Toga could be an ally. Since she has her own complex relationship with the idea of heroes and villains, she might find Deku's transformation interesting. She could provide some of her unique skills, like shape - shifting, to help Deku in his villainous plans. Additionally, Twice might also join them because of his loyalty to Toga and his own sense of being an outcast in the hero world.
In some fanfictions, Deku and Bakugou might be in a situation where they are the only ones who can save their classmates from a powerful villain. This would put a lot of pressure on them but also force them to put aside their differences. They could also be in a time - travel scenario where they go back to their childhood and try to change certain events that led to their rocky relationship in the present.